Home / 714,690,705.78-986,302,824.84-397,149,765.66

Finding the Fourth Proportional to 714,690,705.78, 986,302,824.84 and 397,149,765.66

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Solution

The fourth proportional to 714,690,705.78, 986,302,824.84 and 397,149,765.66 is: 548,083,153.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,690,705.78 : 986,302,824.84 = 397,149,765.66 : x
  2. Step 2: Convert to fraction form
    714,690,705.78/986,302,824.84 = 397,149,765.66/x
  3. Step 3: Cross multiply
    714,690,705.78x = 986,302,824.84 × 397,149,765.66
  4. Step 4: Simplify right side
    714,690,705.78x = 391,709,935,755,002,048
  5. Step 5: Solve for x
    x = 391,709,935,755,002,048/714,690,705.78
  6. Step 6: Final answer
    x = 548,083,153.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.