Home / 10,129,354.92-13,979,841.12-5,777,443.62

Finding the Fourth Proportional to 10,129,354.92, 13,979,841.12 and 5,777,443.62

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Solution

The fourth proportional to 10,129,354.92, 13,979,841.12 and 5,777,443.62 is: 7,973,631.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129,354.92 : 13,979,841.12 = 5,777,443.62 : x
  2. Step 2: Convert to fraction form
    10,129,354.92/13,979,841.12 = 5,777,443.62/x
  3. Step 3: Cross multiply
    10,129,354.92x = 13,979,841.12 × 5,777,443.62
  4. Step 4: Simplify right side
    10,129,354.92x = 80,767,743,887,357.66
  5. Step 5: Solve for x
    x = 80,767,743,887,357.66/10,129,354.92
  6. Step 6: Final answer
    x = 7,973,631.54

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1.5x scale

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.