Home / 18,121,051.20-25,007,036.04-9,972,289.20

Finding the Fourth Proportional to 18,121,051.20, 25,007,036.04 and 9,972,289.20

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Solution

The fourth proportional to 18,121,051.20, 25,007,036.04 and 9,972,289.20 is: 13,761,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121,051.20 : 25,007,036.04 = 9,972,289.20 : x
  2. Step 2: Convert to fraction form
    18,121,051.20/25,007,036.04 = 9,972,289.20/x
  3. Step 3: Cross multiply
    18,121,051.20x = 25,007,036.04 × 9,972,289.20
  4. Step 4: Simplify right side
    18,121,051.20x = 249,377,395,425,702.75
  5. Step 5: Solve for x
    x = 249,377,395,425,702.75/18,121,051.20
  6. Step 6: Final answer
    x = 13,761,751.05

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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.