Home / 19,155,644.40-28,747,463.40-13,486,940.40

Finding the Fourth Proportional to 19,155,644.40, 28,747,463.40 and 13,486,940.40

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Solution

The fourth proportional to 19,155,644.40, 28,747,463.40 and 13,486,940.40 is: 20,240,265.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155,644.40 : 28,747,463.40 = 13,486,940.40 : x
  2. Step 2: Convert to fraction form
    19,155,644.40/28,747,463.40 = 13,486,940.40/x
  3. Step 3: Cross multiply
    19,155,644.40x = 28,747,463.40 × 13,486,940.40
  4. Step 4: Simplify right side
    19,155,644.40x = 387,715,325,526,981.38
  5. Step 5: Solve for x
    x = 387,715,325,526,981.38/19,155,644.40
  6. Step 6: Final answer
    x = 20,240,265.35

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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.