Home / 10,109,917.20-15,164,875.80-5,805,245.10

Finding the Fourth Proportional to 10,109,917.20, 15,164,875.80 and 5,805,245.10

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Solution

The fourth proportional to 10,109,917.20, 15,164,875.80 and 5,805,245.10 is: 8,707,867.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,917.20 : 15,164,875.80 = 5,805,245.10 : x
  2. Step 2: Convert to fraction form
    10,109,917.20/15,164,875.80 = 5,805,245.10/x
  3. Step 3: Cross multiply
    10,109,917.20x = 15,164,875.80 × 5,805,245.10
  4. Step 4: Simplify right side
    10,109,917.20x = 88,035,820,930,058.58
  5. Step 5: Solve for x
    x = 88,035,820,930,058.58/10,109,917.20
  6. Step 6: Final answer
    x = 8,707,867.65

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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.