Home / 10,109,939.20-15,164,908.80-5,805,267.10

Finding the Fourth Proportional to 10,109,939.20, 15,164,908.80 and 5,805,267.10

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Solution

The fourth proportional to 10,109,939.20, 15,164,908.80 and 5,805,267.10 is: 8,707,900.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,939.20 : 15,164,908.80 = 5,805,267.10 : x
  2. Step 2: Convert to fraction form
    10,109,939.20/15,164,908.80 = 5,805,267.10/x
  3. Step 3: Cross multiply
    10,109,939.20x = 15,164,908.80 × 5,805,267.10
  4. Step 4: Simplify right side
    10,109,939.20x = 88,036,346,131,140.48
  5. Step 5: Solve for x
    x = 88,036,346,131,140.48/10,109,939.20
  6. Step 6: Final answer
    x = 8,707,900.65

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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.