Home / 747,112,378.11-1,121,348,622.98-397,651,834

Finding the Fourth Proportional to 747,112,378.11, 1,121,348,622.98 and 397,651,834

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Solution

The fourth proportional to 747,112,378.11, 1,121,348,622.98 and 397,651,834 is: 596,839,711.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,112,378.11 : 1,121,348,622.98 = 397,651,834 : x
  2. Step 2: Convert to fraction form
    747,112,378.11/1,121,348,622.98 = 397,651,834/x
  3. Step 3: Cross multiply
    747,112,378.11x = 1,121,348,622.98 × 397,651,834
  4. Step 4: Simplify right side
    747,112,378.11x = 445,906,336,481,371,584
  5. Step 5: Solve for x
    x = 445,906,336,481,371,584/747,112,378.11
  6. Step 6: Final answer
    x = 596,839,711.86

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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.