Home / 80,447,136.10-120,670,704.15-74,148,576.10

Finding the Fourth Proportional to 80,447,136.10, 120,670,704.15 and 74,148,576.10

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Solution

The fourth proportional to 80,447,136.10, 120,670,704.15 and 74,148,576.10 is: 111,222,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,447,136.10 : 120,670,704.15 = 74,148,576.10 : x
  2. Step 2: Convert to fraction form
    80,447,136.10/120,670,704.15 = 74,148,576.10/x
  3. Step 3: Cross multiply
    80,447,136.10x = 120,670,704.15 × 74,148,576.10
  4. Step 4: Simplify right side
    80,447,136.10x = 8,947,560,889,706,861
  5. Step 5: Solve for x
    x = 8,947,560,889,706,861/80,447,136.10
  6. Step 6: Final answer
    x = 111,222,864.15

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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.