Home / 66,427,073.20-99,640,609.80-52,990,145.20

Finding the Fourth Proportional to 66,427,073.20, 99,640,609.80 and 52,990,145.20

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Solution

The fourth proportional to 66,427,073.20, 99,640,609.80 and 52,990,145.20 is: 79,485,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427,073.20 : 99,640,609.80 = 52,990,145.20 : x
  2. Step 2: Convert to fraction form
    66,427,073.20/99,640,609.80 = 52,990,145.20/x
  3. Step 3: Cross multiply
    66,427,073.20x = 99,640,609.80 × 52,990,145.20
  4. Step 4: Simplify right side
    66,427,073.20x = 5,279,970,381,118,543
  5. Step 5: Solve for x
    x = 5,279,970,381,118,543/66,427,073.20
  6. Step 6: Final answer
    x = 79,485,217.80

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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.