Home / 18,121,306.32-25,007,406.80-9,972,544.32

Finding the Fourth Proportional to 18,121,306.32, 25,007,406.80 and 9,972,544.32

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Solution

The fourth proportional to 18,121,306.32, 25,007,406.80 and 9,972,544.32 is: 13,762,113.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121,306.32 : 25,007,406.80 = 9,972,544.32 : x
  2. Step 2: Convert to fraction form
    18,121,306.32/25,007,406.80 = 9,972,544.32/x
  3. Step 3: Cross multiply
    18,121,306.32x = 25,007,406.80 × 9,972,544.32
  4. Step 4: Simplify right side
    18,121,306.32x = 249,387,472,647,502.22
  5. Step 5: Solve for x
    x = 249,387,472,647,502.22/18,121,306.32
  6. Step 6: Final answer
    x = 13,762,113.41

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1.5x scale

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.