Home / 6,438,528,604.20-9,657,792,906.30-3,989,648,476.20

Finding the Fourth Proportional to 6,438,528,604.20, 9,657,792,906.30 and 3,989,648,476.20

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Solution

The fourth proportional to 6,438,528,604.20, 9,657,792,906.30 and 3,989,648,476.20 is: 5,984,472,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,528,604.20 : 9,657,792,906.30 = 3,989,648,476.20 : x
  2. Step 2: Convert to fraction form
    6,438,528,604.20/9,657,792,906.30 = 3,989,648,476.20/x
  3. Step 3: Cross multiply
    6,438,528,604.20x = 9,657,792,906.30 × 3,989,648,476.20
  4. Step 4: Simplify right side
    6,438,528,604.20x = 38,531,198,752,074,956,800
  5. Step 5: Solve for x
    x = 38,531,198,752,074,956,800/6,438,528,604.20
  6. Step 6: Final answer
    x = 5,984,472,714.30

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Double scale
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1.5x scale

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.