Home / 8,309,088.20-12,463,632.30-7,917,177.80

Finding the Fourth Proportional to 8,309,088.20, 12,463,632.30 and 7,917,177.80

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Solution

The fourth proportional to 8,309,088.20, 12,463,632.30 and 7,917,177.80 is: 11,875,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309,088.20 : 12,463,632.30 = 7,917,177.80 : x
  2. Step 2: Convert to fraction form
    8,309,088.20/12,463,632.30 = 7,917,177.80/x
  3. Step 3: Cross multiply
    8,309,088.20x = 12,463,632.30 × 7,917,177.80
  4. Step 4: Simplify right side
    8,309,088.20x = 98,676,792,952,922.94
  5. Step 5: Solve for x
    x = 98,676,792,952,922.94/8,309,088.20
  6. Step 6: Final answer
    x = 11,875,766.70

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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.