Home / 131,051,306.30-196,702,930.65-66,428,080.70

Finding the Fourth Proportional to 131,051,306.30, 196,702,930.65 and 66,428,080.70

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Solution

The fourth proportional to 131,051,306.30, 196,702,930.65 and 66,428,080.70 is: 99,705,974.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,051,306.30 : 196,702,930.65 = 66,428,080.70 : x
  2. Step 2: Convert to fraction form
    131,051,306.30/196,702,930.65 = 66,428,080.70/x
  3. Step 3: Cross multiply
    131,051,306.30x = 196,702,930.65 × 66,428,080.70
  4. Step 4: Simplify right side
    131,051,306.30x = 13,066,598,151,144,704
  5. Step 5: Solve for x
    x = 13,066,598,151,144,704/131,051,306.30
  6. Step 6: Final answer
    x = 99,705,974.10

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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.