Home / 8,688,005.20-13,032,007.80-3,960,197.20

Finding the Fourth Proportional to 8,688,005.20, 13,032,007.80 and 3,960,197.20

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Solution

The fourth proportional to 8,688,005.20, 13,032,007.80 and 3,960,197.20 is: 5,940,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688,005.20 : 13,032,007.80 = 3,960,197.20 : x
  2. Step 2: Convert to fraction form
    8,688,005.20/13,032,007.80 = 3,960,197.20/x
  3. Step 3: Cross multiply
    8,688,005.20x = 13,032,007.80 × 3,960,197.20
  4. Step 4: Simplify right side
    8,688,005.20x = 51,609,320,799,938.16
  5. Step 5: Solve for x
    x = 51,609,320,799,938.16/8,688,005.20
  6. Step 6: Final answer
    x = 5,940,295.80

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Similar ratio
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1.5x scale

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.