Home / 10,780,000.80-16,170,001.20-9,717,118.80

Finding the Fourth Proportional to 10,780,000.80, 16,170,001.20 and 9,717,118.80

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Solution

The fourth proportional to 10,780,000.80, 16,170,001.20 and 9,717,118.80 is: 14,575,678.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,000.80 : 16,170,001.20 = 9,717,118.80 : x
  2. Step 2: Convert to fraction form
    10,780,000.80/16,170,001.20 = 9,717,118.80/x
  3. Step 3: Cross multiply
    10,780,000.80x = 16,170,001.20 × 9,717,118.80
  4. Step 4: Simplify right side
    10,780,000.80x = 157,125,822,656,542.56
  5. Step 5: Solve for x
    x = 157,125,822,656,542.56/10,780,000.80
  6. Step 6: Final answer
    x = 14,575,678.20

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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.