Home / 12,127,967,999.60-18,191,951,999.40-6,617,987,711.60

Finding the Fourth Proportional to 12,127,967,999.60, 18,191,951,999.40 and 6,617,987,711.60

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Solution

The fourth proportional to 12,127,967,999.60, 18,191,951,999.40 and 6,617,987,711.60 is: 9,926,981,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,967,999.60 : 18,191,951,999.40 = 6,617,987,711.60 : x
  2. Step 2: Convert to fraction form
    12,127,967,999.60/18,191,951,999.40 = 6,617,987,711.60/x
  3. Step 3: Cross multiply
    12,127,967,999.60x = 18,191,951,999.40 × 6,617,987,711.60
  4. Step 4: Simplify right side
    12,127,967,999.60x = 120,394,114,782,046,273,536
  5. Step 5: Solve for x
    x = 120,394,114,782,046,273,536/12,127,967,999.60
  6. Step 6: Final answer
    x = 9,926,981,567.40

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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.