Home / 513,296,726.40-769,850,611.20-318,860,179.20

Finding the Fourth Proportional to 513,296,726.40, 769,850,611.20 and 318,860,179.20

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Solution

The fourth proportional to 513,296,726.40, 769,850,611.20 and 318,860,179.20 is: 478,231,578.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,296,726.40 : 769,850,611.20 = 318,860,179.20 : x
  2. Step 2: Convert to fraction form
    513,296,726.40/769,850,611.20 = 318,860,179.20/x
  3. Step 3: Cross multiply
    513,296,726.40x = 769,850,611.20 × 318,860,179.20
  4. Step 4: Simplify right side
    513,296,726.40x = 245,474,703,844,461,536
  5. Step 5: Solve for x
    x = 245,474,703,844,461,536/513,296,726.40
  6. Step 6: Final answer
    x = 478,231,578.77

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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.