Home / 8,858,809,342.40-13,288,214,013.60-8,721,059,835.20

Finding the Fourth Proportional to 8,858,809,342.40, 13,288,214,013.60 and 8,721,059,835.20

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Solution

The fourth proportional to 8,858,809,342.40, 13,288,214,013.60 and 8,721,059,835.20 is: 13,081,589,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858,809,342.40 : 13,288,214,013.60 = 8,721,059,835.20 : x
  2. Step 2: Convert to fraction form
    8,858,809,342.40/13,288,214,013.60 = 8,721,059,835.20/x
  3. Step 3: Cross multiply
    8,858,809,342.40x = 13,288,214,013.60 × 8,721,059,835.20
  4. Step 4: Simplify right side
    8,858,809,342.40x = 115,887,309,515,548,753,920
  5. Step 5: Solve for x
    x = 115,887,309,515,548,753,920/8,858,809,342.40
  6. Step 6: Final answer
    x = 13,081,589,752.80

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Double scale
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Similar ratio
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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.