Home / 8,317,165.92-12,480,725.52-7,640,342.88

Finding the Fourth Proportional to 8,317,165.92, 12,480,725.52 and 7,640,342.88

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Solution

The fourth proportional to 8,317,165.92, 12,480,725.52 and 7,640,342.88 is: 11,465,085.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317,165.92 : 12,480,725.52 = 7,640,342.88 : x
  2. Step 2: Convert to fraction form
    8,317,165.92/12,480,725.52 = 7,640,342.88/x
  3. Step 3: Cross multiply
    8,317,165.92x = 12,480,725.52 × 7,640,342.88
  4. Step 4: Simplify right side
    8,317,165.92x = 95,357,022,363,966.30
  5. Step 5: Solve for x
    x = 95,357,022,363,966.30/8,317,165.92
  6. Step 6: Final answer
    x = 11,465,085.98

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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.