Home / 18,121,307.60-25,007,408.57-9,972,545.60

Finding the Fourth Proportional to 18,121,307.60, 25,007,408.57 and 9,972,545.60

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Solution

The fourth proportional to 18,121,307.60, 25,007,408.57 and 9,972,545.60 is: 13,762,115.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121,307.60 : 25,007,408.57 = 9,972,545.60 : x
  2. Step 2: Convert to fraction form
    18,121,307.60/25,007,408.57 = 9,972,545.60/x
  3. Step 3: Cross multiply
    18,121,307.60x = 25,007,408.57 × 9,972,545.60
  4. Step 4: Simplify right side
    18,121,307.60x = 249,387,522,302,155.78
  5. Step 5: Solve for x
    x = 249,387,522,302,155.78/18,121,307.60
  6. Step 6: Final answer
    x = 13,762,115.17

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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.