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Finding the Fourth Proportional to 66,367,084.80, 99,550,627.20 and 55,029,676.80

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Solution

The fourth proportional to 66,367,084.80, 99,550,627.20 and 55,029,676.80 is: 82,544,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,367,084.80 : 99,550,627.20 = 55,029,676.80 : x
  2. Step 2: Convert to fraction form
    66,367,084.80/99,550,627.20 = 55,029,676.80/x
  3. Step 3: Cross multiply
    66,367,084.80x = 99,550,627.20 × 55,029,676.80
  4. Step 4: Simplify right side
    66,367,084.80x = 5,478,238,840,053,289
  5. Step 5: Solve for x
    x = 5,478,238,840,053,289/66,367,084.80
  6. Step 6: Final answer
    x = 82,544,515.20

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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.