Home / 1,939,170,740.70-2,909,165,128.65-628,971,038.94

Finding the Fourth Proportional to 1,939,170,740.70, 2,909,165,128.65 and 628,971,038.94

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Solution

The fourth proportional to 1,939,170,740.70, 2,909,165,128.65 and 628,971,038.94 is: 943,589,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,170,740.70 : 2,909,165,128.65 = 628,971,038.94 : x
  2. Step 2: Convert to fraction form
    1,939,170,740.70/2,909,165,128.65 = 628,971,038.94/x
  3. Step 3: Cross multiply
    1,939,170,740.70x = 2,909,165,128.65 × 628,971,038.94
  4. Step 4: Simplify right side
    1,939,170,740.70x = 1,829,780,613,415,009,536
  5. Step 5: Solve for x
    x = 1,829,780,613,415,009,536/1,939,170,740.70
  6. Step 6: Final answer
    x = 943,589,223.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.