Home / 20,123,598.78-27,769,165.47-11,421,948.60

Finding the Fourth Proportional to 20,123,598.78, 27,769,165.47 and 11,421,948.60

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Solution

The fourth proportional to 20,123,598.78, 27,769,165.47 and 11,421,948.60 is: 15,761,493.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123,598.78 : 27,769,165.47 = 11,421,948.60 : x
  2. Step 2: Convert to fraction form
    20,123,598.78/27,769,165.47 = 11,421,948.60/x
  3. Step 3: Cross multiply
    20,123,598.78x = 27,769,165.47 × 11,421,948.60
  4. Step 4: Simplify right side
    20,123,598.78x = 317,177,980,663,234.81
  5. Step 5: Solve for x
    x = 317,177,980,663,234.81/20,123,598.78
  6. Step 6: Final answer
    x = 15,761,493.96

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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.