Home / 18,121,311.13-25,007,413.45-9,972,549.13

Finding the Fourth Proportional to 18,121,311.13, 25,007,413.45 and 9,972,549.13

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Solution

The fourth proportional to 18,121,311.13, 25,007,413.45 and 9,972,549.13 is: 13,762,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121,311.13 : 25,007,413.45 = 9,972,549.13 : x
  2. Step 2: Convert to fraction form
    18,121,311.13/25,007,413.45 = 9,972,549.13/x
  3. Step 3: Cross multiply
    18,121,311.13x = 25,007,413.45 × 9,972,549.13
  4. Step 4: Simplify right side
    18,121,311.13x = 249,387,659,244,347.81
  5. Step 5: Solve for x
    x = 249,387,659,244,347.81/18,121,311.13
  6. Step 6: Final answer
    x = 13,762,120.05

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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.