Home / 8,303,685.60-12,455,528.40-6,959,992.80

Finding the Fourth Proportional to 8,303,685.60, 12,455,528.40 and 6,959,992.80

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Solution

The fourth proportional to 8,303,685.60, 12,455,528.40 and 6,959,992.80 is: 10,439,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,303,685.60 : 12,455,528.40 = 6,959,992.80 : x
  2. Step 2: Convert to fraction form
    8,303,685.60/12,455,528.40 = 6,959,992.80/x
  3. Step 3: Cross multiply
    8,303,685.60x = 12,455,528.40 × 6,959,992.80
  4. Step 4: Simplify right side
    8,303,685.60x = 86,690,387,984,195.52
  5. Step 5: Solve for x
    x = 86,690,387,984,195.52/8,303,685.60
  6. Step 6: Final answer
    x = 10,439,989.20

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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.