Home / 186,786,404.10-279,801,692.55-129,343,536.90

Finding the Fourth Proportional to 186,786,404.10, 279,801,692.55 and 129,343,536.90

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Solution

The fourth proportional to 186,786,404.10, 279,801,692.55 and 129,343,536.90 is: 193,753,612.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,786,404.10 : 279,801,692.55 = 129,343,536.90 : x
  2. Step 2: Convert to fraction form
    186,786,404.10/279,801,692.55 = 129,343,536.90/x
  3. Step 3: Cross multiply
    186,786,404.10x = 279,801,692.55 × 129,343,536.90
  4. Step 4: Simplify right side
    186,786,404.10x = 36,190,540,545,023,384
  5. Step 5: Solve for x
    x = 36,190,540,545,023,384/186,786,404.10
  6. Step 6: Final answer
    x = 193,753,612.42

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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.