Home / 8,578,007.28-12,867,015.72-5,385,375.76

Finding the Fourth Proportional to 8,578,007.28, 12,867,015.72 and 5,385,375.76

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Solution

The fourth proportional to 8,578,007.28, 12,867,015.72 and 5,385,375.76 is: 8,078,066.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578,007.28 : 12,867,015.72 = 5,385,375.76 : x
  2. Step 2: Convert to fraction form
    8,578,007.28/12,867,015.72 = 5,385,375.76/x
  3. Step 3: Cross multiply
    8,578,007.28x = 12,867,015.72 × 5,385,375.76
  4. Step 4: Simplify right side
    8,578,007.28x = 69,293,714,562,026.95
  5. Step 5: Solve for x
    x = 69,293,714,562,026.95/8,578,007.28
  6. Step 6: Final answer
    x = 8,078,066.65

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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.