Home / 61,187,750.60-91,785,773.10-20,801,280.20

Finding the Fourth Proportional to 61,187,750.60, 91,785,773.10 and 20,801,280.20

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Solution

The fourth proportional to 61,187,750.60, 91,785,773.10 and 20,801,280.20 is: 31,203,330.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,187,750.60 : 91,785,773.10 = 20,801,280.20 : x
  2. Step 2: Convert to fraction form
    61,187,750.60/91,785,773.10 = 20,801,280.20/x
  3. Step 3: Cross multiply
    61,187,750.60x = 91,785,773.10 × 20,801,280.20
  4. Step 4: Simplify right side
    61,187,750.60x = 1,909,261,584,626,722.50
  5. Step 5: Solve for x
    x = 1,909,261,584,626,722.50/61,187,750.60
  6. Step 6: Final answer
    x = 31,203,330.17

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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.