Home / 82,136,356.88-123,325,649.78-45,815,710.64

Finding the Fourth Proportional to 82,136,356.88, 123,325,649.78 and 45,815,710.64

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Solution

The fourth proportional to 82,136,356.88, 123,325,649.78 and 45,815,710.64 is: 68,791,123.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,136,356.88 : 123,325,649.78 = 45,815,710.64 : x
  2. Step 2: Convert to fraction form
    82,136,356.88/123,325,649.78 = 45,815,710.64/x
  3. Step 3: Cross multiply
    82,136,356.88x = 123,325,649.78 × 45,815,710.64
  4. Step 4: Simplify right side
    82,136,356.88x = 5,650,252,283,964,753
  5. Step 5: Solve for x
    x = 5,650,252,283,964,753/82,136,356.88
  6. Step 6: Final answer
    x = 68,791,123.67

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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.