Home / 7,830,272,000.80-11,745,408,001.20-5,503,835,879.20

Finding the Fourth Proportional to 7,830,272,000.80, 11,745,408,001.20 and 5,503,835,879.20

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Solution

The fourth proportional to 7,830,272,000.80, 11,745,408,001.20 and 5,503,835,879.20 is: 8,255,753,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830,272,000.80 : 11,745,408,001.20 = 5,503,835,879.20 : x
  2. Step 2: Convert to fraction form
    7,830,272,000.80/11,745,408,001.20 = 5,503,835,879.20/x
  3. Step 3: Cross multiply
    7,830,272,000.80x = 11,745,408,001.20 × 5,503,835,879.20
  4. Step 4: Simplify right side
    7,830,272,000.80x = 64,644,797,972,847,321,088
  5. Step 5: Solve for x
    x = 64,644,797,972,847,321,088/7,830,272,000.80
  6. Step 6: Final answer
    x = 8,255,753,818.80

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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.