Home / 20,209,535.70-30,333,330.45-10,631,787.90

Finding the Fourth Proportional to 20,209,535.70, 30,333,330.45 and 10,631,787.90

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Solution

The fourth proportional to 20,209,535.70, 30,333,330.45 and 10,631,787.90 is: 15,957,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209,535.70 : 30,333,330.45 = 10,631,787.90 : x
  2. Step 2: Convert to fraction form
    20,209,535.70/30,333,330.45 = 10,631,787.90/x
  3. Step 3: Cross multiply
    20,209,535.70x = 30,333,330.45 × 10,631,787.90
  4. Step 4: Simplify right side
    20,209,535.70x = 322,497,535,645,011.56
  5. Step 5: Solve for x
    x = 322,497,535,645,011.56/20,209,535.70
  6. Step 6: Final answer
    x = 15,957,691.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.