Home / 102,789,736.38-141,881,595.03-66,120,310.62

Finding the Fourth Proportional to 102,789,736.38, 141,881,595.03 and 66,120,310.62

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Solution

The fourth proportional to 102,789,736.38, 141,881,595.03 and 66,120,310.62 is: 91,266,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,789,736.38 : 141,881,595.03 = 66,120,310.62 : x
  2. Step 2: Convert to fraction form
    102,789,736.38/141,881,595.03 = 66,120,310.62/x
  3. Step 3: Cross multiply
    102,789,736.38x = 141,881,595.03 × 66,120,310.62
  4. Step 4: Simplify right side
    102,789,736.38x = 9,381,255,134,644,648
  5. Step 5: Solve for x
    x = 9,381,255,134,644,648/102,789,736.38
  6. Step 6: Final answer
    x = 91,266,457.77

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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.