Home / 18,121,375.18-25,007,501.71-9,972,613.18

Finding the Fourth Proportional to 18,121,375.18, 25,007,501.71 and 9,972,613.18

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Solution

The fourth proportional to 18,121,375.18, 25,007,501.71 and 9,972,613.18 is: 13,762,208.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121,375.18 : 25,007,501.71 = 9,972,613.18 : x
  2. Step 2: Convert to fraction form
    18,121,375.18/25,007,501.71 = 9,972,613.18/x
  3. Step 3: Cross multiply
    18,121,375.18x = 25,007,501.71 × 9,972,613.18
  4. Step 4: Simplify right side
    18,121,375.18x = 249,390,141,223,786.69
  5. Step 5: Solve for x
    x = 249,390,141,223,786.69/18,121,375.18
  6. Step 6: Final answer
    x = 13,762,208.37

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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.