Home / 15,005,305.28-20,707,332.96-8,809,138.88

Finding the Fourth Proportional to 15,005,305.28, 20,707,332.96 and 8,809,138.88

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Solution

The fourth proportional to 15,005,305.28, 20,707,332.96 and 8,809,138.88 is: 12,156,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005,305.28 : 20,707,332.96 = 8,809,138.88 : x
  2. Step 2: Convert to fraction form
    15,005,305.28/20,707,332.96 = 8,809,138.88/x
  3. Step 3: Cross multiply
    15,005,305.28x = 20,707,332.96 × 8,809,138.88
  4. Step 4: Simplify right side
    15,005,305.28x = 182,413,771,879,041.50
  5. Step 5: Solve for x
    x = 182,413,771,879,041.50/15,005,305.28
  6. Step 6: Final answer
    x = 12,156,618.51

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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.