Home / 8,142,666.80-12,214,000.20-7,445,937.20

Finding the Fourth Proportional to 8,142,666.80, 12,214,000.20 and 7,445,937.20

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Solution

The fourth proportional to 8,142,666.80, 12,214,000.20 and 7,445,937.20 is: 11,168,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142,666.80 : 12,214,000.20 = 7,445,937.20 : x
  2. Step 2: Convert to fraction form
    8,142,666.80/12,214,000.20 = 7,445,937.20/x
  3. Step 3: Cross multiply
    8,142,666.80x = 12,214,000.20 × 7,445,937.20
  4. Step 4: Simplify right side
    8,142,666.80x = 90,944,678,449,987.44
  5. Step 5: Solve for x
    x = 90,944,678,449,987.44/8,142,666.80
  6. Step 6: Final answer
    x = 11,168,905.80

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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.