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Finding the Fourth Proportional to 86,921,304,819.30, 130,381,957,228.95 and 86,921,304,819.30

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Solution

The fourth proportional to 86,921,304,819.30, 130,381,957,228.95 and 86,921,304,819.30 is: 130,381,957,228.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,921,304,819.30 : 130,381,957,228.95 = 86,921,304,819.30 : x
  2. Step 2: Convert to fraction form
    86,921,304,819.30/130,381,957,228.95 = 86,921,304,819.30/x
  3. Step 3: Cross multiply
    86,921,304,819.30x = 130,381,957,228.95 × 86,921,304,819.30
  4. Step 4: Simplify right side
    86,921,304,819.30x = 11,332,969,847,234,498,658,304
  5. Step 5: Solve for x
    x = 11,332,969,847,234,498,658,304/86,921,304,819.30
  6. Step 6: Final answer
    x = 130,381,957,228.95

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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.