Home / 435,897,687.20-653,521,105.20-263,338,138.40

Finding the Fourth Proportional to 435,897,687.20, 653,521,105.20 and 263,338,138.40

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Solution

The fourth proportional to 435,897,687.20, 653,521,105.20 and 263,338,138.40 is: 394,810,608.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,897,687.20 : 653,521,105.20 = 263,338,138.40 : x
  2. Step 2: Convert to fraction form
    435,897,687.20/653,521,105.20 = 263,338,138.40/x
  3. Step 3: Cross multiply
    435,897,687.20x = 653,521,105.20 × 263,338,138.40
  4. Step 4: Simplify right side
    435,897,687.20x = 172,097,031,248,478,592
  5. Step 5: Solve for x
    x = 172,097,031,248,478,592/435,897,687.20
  6. Step 6: Final answer
    x = 394,810,608.78

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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.