Home / 423,998,120.25-635,997,327.80-132,887,830.05

Finding the Fourth Proportional to 423,998,120.25, 635,997,327.80 and 132,887,830.05

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Solution

The fourth proportional to 423,998,120.25, 635,997,327.80 and 132,887,830.05 is: 199,331,791.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,998,120.25 : 635,997,327.80 = 132,887,830.05 : x
  2. Step 2: Convert to fraction form
    423,998,120.25/635,997,327.80 = 132,887,830.05/x
  3. Step 3: Cross multiply
    423,998,120.25x = 635,997,327.80 × 132,887,830.05
  4. Step 4: Simplify right side
    423,998,120.25x = 84,516,304,808,276,096
  5. Step 5: Solve for x
    x = 84,516,304,808,276,096/423,998,120.25
  6. Step 6: Final answer
    x = 199,331,791.28

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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.