Home / 20,209,549.20-30,333,350.70-10,631,801.40

Finding the Fourth Proportional to 20,209,549.20, 30,333,350.70 and 10,631,801.40

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Solution

The fourth proportional to 20,209,549.20, 30,333,350.70 and 10,631,801.40 is: 15,957,711.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209,549.20 : 30,333,350.70 = 10,631,801.40 : x
  2. Step 2: Convert to fraction form
    20,209,549.20/30,333,350.70 = 10,631,801.40/x
  3. Step 3: Cross multiply
    20,209,549.20x = 30,333,350.70 × 10,631,801.40
  4. Step 4: Simplify right side
    20,209,549.20x = 322,498,160,438,951
  5. Step 5: Solve for x
    x = 322,498,160,438,951/20,209,549.20
  6. Step 6: Final answer
    x = 15,957,711.74

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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.