Home / 27,695,814.80-38,220,343.01-15,137,123.12

Finding the Fourth Proportional to 27,695,814.80, 38,220,343.01 and 15,137,123.12

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Solution

The fourth proportional to 27,695,814.80, 38,220,343.01 and 15,137,123.12 is: 20,889,294.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,695,814.80 : 38,220,343.01 = 15,137,123.12 : x
  2. Step 2: Convert to fraction form
    27,695,814.80/38,220,343.01 = 15,137,123.12/x
  3. Step 3: Cross multiply
    27,695,814.80x = 38,220,343.01 × 15,137,123.12
  4. Step 4: Simplify right side
    27,695,814.80x = 578,546,037,964,395.12
  5. Step 5: Solve for x
    x = 578,546,037,964,395.12/27,695,814.80
  6. Step 6: Final answer
    x = 20,889,294.73

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Double scale
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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.