Home / 12,451,337.60-18,679,630.80-5,259,169.40

Finding the Fourth Proportional to 12,451,337.60, 18,679,630.80 and 5,259,169.40

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Solution

The fourth proportional to 12,451,337.60, 18,679,630.80 and 5,259,169.40 is: 7,889,862.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451,337.60 : 18,679,630.80 = 5,259,169.40 : x
  2. Step 2: Convert to fraction form
    12,451,337.60/18,679,630.80 = 5,259,169.40/x
  3. Step 3: Cross multiply
    12,451,337.60x = 18,679,630.80 × 5,259,169.40
  4. Step 4: Simplify right side
    12,451,337.60x = 98,239,342,706,657.53
  5. Step 5: Solve for x
    x = 98,239,342,706,657.53/12,451,337.60
  6. Step 6: Final answer
    x = 7,889,862.59

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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.