Home / 684,983,887.20-945,277,770.60-371,718,100.68

Finding the Fourth Proportional to 684,983,887.20, 945,277,770.60 and 371,718,100.68

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Solution

The fourth proportional to 684,983,887.20, 945,277,770.60 and 371,718,100.68 is: 512,970,982.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,983,887.20 : 945,277,770.60 = 371,718,100.68 : x
  2. Step 2: Convert to fraction form
    684,983,887.20/945,277,770.60 = 371,718,100.68/x
  3. Step 3: Cross multiply
    684,983,887.20x = 945,277,770.60 × 371,718,100.68
  4. Step 4: Simplify right side
    684,983,887.20x = 351,376,857,502,456,768
  5. Step 5: Solve for x
    x = 351,376,857,502,456,768/684,983,887.20
  6. Step 6: Final answer
    x = 512,970,982.34

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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.