Home / 12,161,439.12-16,775,473.68-8,031,508.32

Finding the Fourth Proportional to 12,161,439.12, 16,775,473.68 and 8,031,508.32

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Solution

The fourth proportional to 12,161,439.12, 16,775,473.68 and 8,031,508.32 is: 11,078,652.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161,439.12 : 16,775,473.68 = 8,031,508.32 : x
  2. Step 2: Convert to fraction form
    12,161,439.12/16,775,473.68 = 8,031,508.32/x
  3. Step 3: Cross multiply
    12,161,439.12x = 16,775,473.68 × 8,031,508.32
  4. Step 4: Simplify right side
    12,161,439.12x = 134,732,356,432,861.02
  5. Step 5: Solve for x
    x = 134,732,356,432,861.02/12,161,439.12
  6. Step 6: Final answer
    x = 11,078,652.38

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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.