Home / 6,400,944,010.40-9,601,416,015.60-2,720,569,431.20

Finding the Fourth Proportional to 6,400,944,010.40, 9,601,416,015.60 and 2,720,569,431.20

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Solution

The fourth proportional to 6,400,944,010.40, 9,601,416,015.60 and 2,720,569,431.20 is: 4,080,854,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,400,944,010.40 : 9,601,416,015.60 = 2,720,569,431.20 : x
  2. Step 2: Convert to fraction form
    6,400,944,010.40/9,601,416,015.60 = 2,720,569,431.20/x
  3. Step 3: Cross multiply
    6,400,944,010.40x = 9,601,416,015.60 × 2,720,569,431.20
  4. Step 4: Simplify right side
    6,400,944,010.40x = 26,121,318,908,275,462,144
  5. Step 5: Solve for x
    x = 26,121,318,908,275,462,144/6,400,944,010.40
  6. Step 6: Final answer
    x = 4,080,854,146.80

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Half scale
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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.