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Finding the Fourth Proportional to 8,309,114.70, 12,463,672.05 and 6,890,772.30

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Solution

The fourth proportional to 8,309,114.70, 12,463,672.05 and 6,890,772.30 is: 10,336,158.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309,114.70 : 12,463,672.05 = 6,890,772.30 : x
  2. Step 2: Convert to fraction form
    8,309,114.70/12,463,672.05 = 6,890,772.30/x
  3. Step 3: Cross multiply
    8,309,114.70x = 12,463,672.05 × 6,890,772.30
  4. Step 4: Simplify right side
    8,309,114.70x = 85,884,326,118,424.22
  5. Step 5: Solve for x
    x = 85,884,326,118,424.22/8,309,114.70
  6. Step 6: Final answer
    x = 10,336,158.45

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Double scale
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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.