Home / 8,478,104.60-12,717,156.90-8,147,430.20

Finding the Fourth Proportional to 8,478,104.60, 12,717,156.90 and 8,147,430.20

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Solution

The fourth proportional to 8,478,104.60, 12,717,156.90 and 8,147,430.20 is: 12,221,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,104.60 : 12,717,156.90 = 8,147,430.20 : x
  2. Step 2: Convert to fraction form
    8,478,104.60/12,717,156.90 = 8,147,430.20/x
  3. Step 3: Cross multiply
    8,478,104.60x = 12,717,156.90 × 8,147,430.20
  4. Step 4: Simplify right side
    8,478,104.60x = 103,612,148,185,198.39
  5. Step 5: Solve for x
    x = 103,612,148,185,198.39/8,478,104.60
  6. Step 6: Final answer
    x = 12,221,145.30

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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.