Home / 57,246,331.68-78,999,877.95-31,140,787.25

Finding the Fourth Proportional to 57,246,331.68, 78,999,877.95 and 31,140,787.25

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Solution

The fourth proportional to 57,246,331.68, 78,999,877.95 and 31,140,787.25 is: 42,974,253.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,246,331.68 : 78,999,877.95 = 31,140,787.25 : x
  2. Step 2: Convert to fraction form
    57,246,331.68/78,999,877.95 = 31,140,787.25/x
  3. Step 3: Cross multiply
    57,246,331.68x = 78,999,877.95 × 31,140,787.25
  4. Step 4: Simplify right side
    57,246,331.68x = 2,460,118,391,505,139
  5. Step 5: Solve for x
    x = 2,460,118,391,505,139/57,246,331.68
  6. Step 6: Final answer
    x = 42,974,253.88

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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.