Home / 72,472,877.84-108,572,153.10-42,840,352.85

Finding the Fourth Proportional to 72,472,877.84, 108,572,153.10 and 42,840,352.85

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Solution

The fourth proportional to 72,472,877.84, 108,572,153.10 and 42,840,352.85 is: 64,179,448.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,472,877.84 : 108,572,153.10 = 42,840,352.85 : x
  2. Step 2: Convert to fraction form
    72,472,877.84/108,572,153.10 = 42,840,352.85/x
  3. Step 3: Cross multiply
    72,472,877.84x = 108,572,153.10 × 42,840,352.85
  4. Step 4: Simplify right side
    72,472,877.84x = 4,651,269,348,025,900
  5. Step 5: Solve for x
    x = 4,651,269,348,025,900/72,472,877.84
  6. Step 6: Final answer
    x = 64,179,448.74

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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.