Home / 77,297,719.42-106,672,177.83-42,491,876.86

Finding the Fourth Proportional to 77,297,719.42, 106,672,177.83 and 42,491,876.86

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Solution

The fourth proportional to 77,297,719.42, 106,672,177.83 and 42,491,876.86 is: 58,639,518.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,297,719.42 : 106,672,177.83 = 42,491,876.86 : x
  2. Step 2: Convert to fraction form
    77,297,719.42/106,672,177.83 = 42,491,876.86/x
  3. Step 3: Cross multiply
    77,297,719.42x = 106,672,177.83 × 42,491,876.86
  4. Step 4: Simplify right side
    77,297,719.42x = 4,532,701,044,740,382
  5. Step 5: Solve for x
    x = 4,532,701,044,740,382/77,297,719.42
  6. Step 6: Final answer
    x = 58,639,518.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.