Home / 66,429,100.70-99,643,651.05-55,847,519.90

Finding the Fourth Proportional to 66,429,100.70, 99,643,651.05 and 55,847,519.90

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Solution

The fourth proportional to 66,429,100.70, 99,643,651.05 and 55,847,519.90 is: 83,771,279.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,100.70 : 99,643,651.05 = 55,847,519.90 : x
  2. Step 2: Convert to fraction form
    66,429,100.70/99,643,651.05 = 55,847,519.90/x
  3. Step 3: Cross multiply
    66,429,100.70x = 99,643,651.05 × 55,847,519.90
  4. Step 4: Simplify right side
    66,429,100.70x = 5,564,850,784,923,531
  5. Step 5: Solve for x
    x = 5,564,850,784,923,531/66,429,100.70
  6. Step 6: Final answer
    x = 83,771,279.85

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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.