Home / 18,121,308.72-25,007,410.16-9,972,546.72

Finding the Fourth Proportional to 18,121,308.72, 25,007,410.16 and 9,972,546.72

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Solution

The fourth proportional to 18,121,308.72, 25,007,410.16 and 9,972,546.72 is: 13,762,116.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121,308.72 : 25,007,410.16 = 9,972,546.72 : x
  2. Step 2: Convert to fraction form
    18,121,308.72/25,007,410.16 = 9,972,546.72/x
  3. Step 3: Cross multiply
    18,121,308.72x = 25,007,410.16 × 9,972,546.72
  4. Step 4: Simplify right side
    18,121,308.72x = 249,387,566,166,802.69
  5. Step 5: Solve for x
    x = 249,387,566,166,802.69/18,121,308.72
  6. Step 6: Final answer
    x = 13,762,116.74

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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.