Home / 513,296,727.40-769,850,612.70-318,860,180.20

Finding the Fourth Proportional to 513,296,727.40, 769,850,612.70 and 318,860,180.20

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Solution

The fourth proportional to 513,296,727.40, 769,850,612.70 and 318,860,180.20 is: 478,231,580.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,296,727.40 : 769,850,612.70 = 318,860,180.20 : x
  2. Step 2: Convert to fraction form
    513,296,727.40/769,850,612.70 = 318,860,180.20/x
  3. Step 3: Cross multiply
    513,296,727.40x = 769,850,612.70 × 318,860,180.20
  4. Step 4: Simplify right side
    513,296,727.40x = 245,474,705,092,602,400
  5. Step 5: Solve for x
    x = 245,474,705,092,602,400/513,296,727.40
  6. Step 6: Final answer
    x = 478,231,580.27

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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.