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Finding the Fourth Proportional to 8,392,895,999.40, 11,767,253,667 and 8,392,895,999.40

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Solution

The fourth proportional to 8,392,895,999.40, 11,767,253,667 and 8,392,895,999.40 is: 11,767,253,667

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392,895,999.40 : 11,767,253,667 = 8,392,895,999.40 : x
  2. Step 2: Convert to fraction form
    8,392,895,999.40/11,767,253,667 = 8,392,895,999.40/x
  3. Step 3: Cross multiply
    8,392,895,999.40x = 11,767,253,667 × 8,392,895,999.40
  4. Step 4: Simplify right side
    8,392,895,999.40x = 98,761,336,225,689,272,320
  5. Step 5: Solve for x
    x = 98,761,336,225,689,272,320/8,392,895,999.40
  6. Step 6: Final answer
    x = 11,767,253,667

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.