Home / 12,902,959.40-19,354,439.10-8,367,996.20

Finding the Fourth Proportional to 12,902,959.40, 19,354,439.10 and 8,367,996.20

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Solution

The fourth proportional to 12,902,959.40, 19,354,439.10 and 8,367,996.20 is: 12,551,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,902,959.40 : 19,354,439.10 = 8,367,996.20 : x
  2. Step 2: Convert to fraction form
    12,902,959.40/19,354,439.10 = 8,367,996.20/x
  3. Step 3: Cross multiply
    12,902,959.40x = 19,354,439.10 × 8,367,996.20
  4. Step 4: Simplify right side
    12,902,959.40x = 161,957,872,841,931.44
  5. Step 5: Solve for x
    x = 161,957,872,841,931.44/12,902,959.40
  6. Step 6: Final answer
    x = 12,551,994.30

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Half scale
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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.