Home / 9,179,112.40-13,752,079.80-8,117,429.20

Finding the Fourth Proportional to 9,179,112.40, 13,752,079.80 and 8,117,429.20

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Solution

The fourth proportional to 9,179,112.40, 13,752,079.80 and 8,117,429.20 is: 12,161,473.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179,112.40 : 13,752,079.80 = 8,117,429.20 : x
  2. Step 2: Convert to fraction form
    9,179,112.40/13,752,079.80 = 8,117,429.20/x
  3. Step 3: Cross multiply
    9,179,112.40x = 13,752,079.80 × 8,117,429.20
  4. Step 4: Simplify right side
    9,179,112.40x = 111,631,534,129,250.17
  5. Step 5: Solve for x
    x = 111,631,534,129,250.17/9,179,112.40
  6. Step 6: Final answer
    x = 12,161,473.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.