Home / 82,692,126.46-124,037,348.55-21,281,046.40

Finding the Fourth Proportional to 82,692,126.46, 124,037,348.55 and 21,281,046.40

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Solution

The fourth proportional to 82,692,126.46, 124,037,348.55 and 21,281,046.40 is: 31,921,353.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,692,126.46 : 124,037,348.55 = 21,281,046.40 : x
  2. Step 2: Convert to fraction form
    82,692,126.46/124,037,348.55 = 21,281,046.40/x
  3. Step 3: Cross multiply
    82,692,126.46x = 124,037,348.55 × 21,281,046.40
  4. Step 4: Simplify right side
    82,692,126.46x = 2,639,644,569,825,522.50
  5. Step 5: Solve for x
    x = 2,639,644,569,825,522.50/82,692,126.46
  6. Step 6: Final answer
    x = 31,921,353.13

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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.