Home / 200,020,489,901.31-300,089,673,331.89-80,576,349,848.31

Finding the Fourth Proportional to 200,020,489,901.31, 300,089,673,331.89 and 80,576,349,848.31

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Solution

The fourth proportional to 200,020,489,901.31, 300,089,673,331.89 and 80,576,349,848.31 is: 120,888,267,577.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,020,489,901.31 : 300,089,673,331.89 = 80,576,349,848.31 : x
  2. Step 2: Convert to fraction form
    200,020,489,901.31/300,089,673,331.89 = 80,576,349,848.31/x
  3. Step 3: Cross multiply
    200,020,489,901.31x = 300,089,673,331.89 × 80,576,349,848.31
  4. Step 4: Simplify right side
    200,020,489,901.31x = 24,180,130,504,255,733,760,000
  5. Step 5: Solve for x
    x = 24,180,130,504,255,733,760,000/200,020,489,901.31
  6. Step 6: Final answer
    x = 120,888,267,577.92

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1.5x scale

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.