Home / 12,861,805.70-17,748,640.05-7,635,037.28

Finding the Fourth Proportional to 12,861,805.70, 17,748,640.05 and 7,635,037.28

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Solution

The fourth proportional to 12,861,805.70, 17,748,640.05 and 7,635,037.28 is: 10,535,964.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861,805.70 : 17,748,640.05 = 7,635,037.28 : x
  2. Step 2: Convert to fraction form
    12,861,805.70/17,748,640.05 = 7,635,037.28/x
  3. Step 3: Cross multiply
    12,861,805.70x = 17,748,640.05 × 7,635,037.28
  4. Step 4: Simplify right side
    12,861,805.70x = 135,511,528,451,051.08
  5. Step 5: Solve for x
    x = 135,511,528,451,051.08/12,861,805.70
  6. Step 6: Final answer
    x = 10,535,964.51

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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.