Home / 782,773,146.45-1,175,010,542.28-316,755,375.44

Finding the Fourth Proportional to 782,773,146.45, 1,175,010,542.28 and 316,755,375.44

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Solution

The fourth proportional to 782,773,146.45, 1,175,010,542.28 and 316,755,375.44 is: 475,477,355.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,773,146.45 : 1,175,010,542.28 = 316,755,375.44 : x
  2. Step 2: Convert to fraction form
    782,773,146.45/1,175,010,542.28 = 316,755,375.44/x
  3. Step 3: Cross multiply
    782,773,146.45x = 1,175,010,542.28 × 316,755,375.44
  4. Step 4: Simplify right side
    782,773,146.45x = 372,190,905,459,984,320
  5. Step 5: Solve for x
    x = 372,190,905,459,984,320/782,773,146.45
  6. Step 6: Final answer
    x = 475,477,355.28

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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.