Home / 2,820,428,750.37-3,888,089,576.10-1,971,018,923.70

Finding the Fourth Proportional to 2,820,428,750.37, 3,888,089,576.10 and 1,971,018,923.70

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Solution

The fourth proportional to 2,820,428,750.37, 3,888,089,576.10 and 1,971,018,923.70 is: 2,717,139,417.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820,428,750.37 : 3,888,089,576.10 = 1,971,018,923.70 : x
  2. Step 2: Convert to fraction form
    2,820,428,750.37/3,888,089,576.10 = 1,971,018,923.70/x
  3. Step 3: Cross multiply
    2,820,428,750.37x = 3,888,089,576.10 × 1,971,018,923.70
  4. Step 4: Simplify right side
    2,820,428,750.37x = 7,663,498,131,533,811,712
  5. Step 5: Solve for x
    x = 7,663,498,131,533,811,712/2,820,428,750.37
  6. Step 6: Final answer
    x = 2,717,139,417.38

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Half scale
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Double scale
Find fourth proportional to 2,820,428,751.37, 3,888,089,577.48 and 1,971,018,924.70
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.