Home / 82,701,229.70-124,051,844.55-78,733,136.90

Finding the Fourth Proportional to 82,701,229.70, 124,051,844.55 and 78,733,136.90

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Solution

The fourth proportional to 82,701,229.70, 124,051,844.55 and 78,733,136.90 is: 118,099,705.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,701,229.70 : 124,051,844.55 = 78,733,136.90 : x
  2. Step 2: Convert to fraction form
    82,701,229.70/124,051,844.55 = 78,733,136.90/x
  3. Step 3: Cross multiply
    82,701,229.70x = 124,051,844.55 × 78,733,136.90
  4. Step 4: Simplify right side
    82,701,229.70x = 9,766,990,859,652,670
  5. Step 5: Solve for x
    x = 9,766,990,859,652,670/82,701,229.70
  6. Step 6: Final answer
    x = 118,099,705.35

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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.