Home / 391,520,248.98-540,145,025.52-224,167,070.10

Finding the Fourth Proportional to 391,520,248.98, 540,145,025.52 and 224,167,070.10

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Solution

The fourth proportional to 391,520,248.98, 540,145,025.52 and 224,167,070.10 is: 309,263,002.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,520,248.98 : 540,145,025.52 = 224,167,070.10 : x
  2. Step 2: Convert to fraction form
    391,520,248.98/540,145,025.52 = 224,167,070.10/x
  3. Step 3: Cross multiply
    391,520,248.98x = 540,145,025.52 × 224,167,070.10
  4. Step 4: Simplify right side
    391,520,248.98x = 121,082,727,799,908,128
  5. Step 5: Solve for x
    x = 121,082,727,799,908,128/391,520,248.98
  6. Step 6: Final answer
    x = 309,263,002.66

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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.