Home / 455,987,796.80-683,981,695.20-132,882,209.60

Finding the Fourth Proportional to 455,987,796.80, 683,981,695.20 and 132,882,209.60

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Solution

The fourth proportional to 455,987,796.80, 683,981,695.20 and 132,882,209.60 is: 199,323,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,987,796.80 : 683,981,695.20 = 132,882,209.60 : x
  2. Step 2: Convert to fraction form
    455,987,796.80/683,981,695.20 = 132,882,209.60/x
  3. Step 3: Cross multiply
    455,987,796.80x = 683,981,695.20 × 132,882,209.60
  4. Step 4: Simplify right side
    455,987,796.80x = 90,888,998,984,129,712
  5. Step 5: Solve for x
    x = 90,888,998,984,129,712/455,987,796.80
  6. Step 6: Final answer
    x = 199,323,314.40

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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.