Home / 12,387,547.70-18,581,321.55-9,198,901.70

Finding the Fourth Proportional to 12,387,547.70, 18,581,321.55 and 9,198,901.70

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Solution

The fourth proportional to 12,387,547.70, 18,581,321.55 and 9,198,901.70 is: 13,798,352.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,547.70 : 18,581,321.55 = 9,198,901.70 : x
  2. Step 2: Convert to fraction form
    12,387,547.70/18,581,321.55 = 9,198,901.70/x
  3. Step 3: Cross multiply
    12,387,547.70x = 18,581,321.55 × 9,198,901.70
  4. Step 4: Simplify right side
    12,387,547.70x = 170,927,750,394,541.62
  5. Step 5: Solve for x
    x = 170,927,750,394,541.62/12,387,547.70
  6. Step 6: Final answer
    x = 13,798,352.55

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Similar ratio
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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.