Home / 66,488,556.30-99,732,834.45-21,053,906.70

Finding the Fourth Proportional to 66,488,556.30, 99,732,834.45 and 21,053,906.70

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Solution

The fourth proportional to 66,488,556.30, 99,732,834.45 and 21,053,906.70 is: 31,580,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,488,556.30 : 99,732,834.45 = 21,053,906.70 : x
  2. Step 2: Convert to fraction form
    66,488,556.30/99,732,834.45 = 21,053,906.70/x
  3. Step 3: Cross multiply
    66,488,556.30x = 99,732,834.45 × 21,053,906.70
  4. Step 4: Simplify right side
    66,488,556.30x = 2,099,765,791,436,845.75
  5. Step 5: Solve for x
    x = 2,099,765,791,436,845.75/66,488,556.30
  6. Step 6: Final answer
    x = 31,580,860.05

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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.