Home / 72,482,312.46-100,025,607.56-39,887,264.46

Finding the Fourth Proportional to 72,482,312.46, 100,025,607.56 and 39,887,264.46

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Solution

The fourth proportional to 72,482,312.46, 100,025,607.56 and 39,887,264.46 is: 55,044,433.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,482,312.46 : 100,025,607.56 = 39,887,264.46 : x
  2. Step 2: Convert to fraction form
    72,482,312.46/100,025,607.56 = 39,887,264.46/x
  3. Step 3: Cross multiply
    72,482,312.46x = 100,025,607.56 × 39,887,264.46
  4. Step 4: Simplify right side
    72,482,312.46x = 3,989,747,861,318,459.50
  5. Step 5: Solve for x
    x = 3,989,747,861,318,459.50/72,482,312.46
  6. Step 6: Final answer
    x = 55,044,433.96

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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.