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Finding the Fourth Proportional to 777,818,662, 1,073,324,865.08 and 438,708,450.28

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Solution

The fourth proportional to 777,818,662, 1,073,324,865.08 and 438,708,450.28 is: 605,381,062.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,818,662 : 1,073,324,865.08 = 438,708,450.28 : x
  2. Step 2: Convert to fraction form
    777,818,662/1,073,324,865.08 = 438,708,450.28/x
  3. Step 3: Cross multiply
    777,818,662x = 1,073,324,865.08 × 438,708,450.28
  4. Step 4: Simplify right side
    777,818,662x = 470,876,688,206,236,864
  5. Step 5: Solve for x
    x = 470,876,688,206,236,864/777,818,662
  6. Step 6: Final answer
    x = 605,381,062.72

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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.