Home / 78,614,764,144.80-117,922,146,217.20-34,534,921,840.80

Finding the Fourth Proportional to 78,614,764,144.80, 117,922,146,217.20 and 34,534,921,840.80

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Solution

The fourth proportional to 78,614,764,144.80, 117,922,146,217.20 and 34,534,921,840.80 is: 51,802,382,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,614,764,144.80 : 117,922,146,217.20 = 34,534,921,840.80 : x
  2. Step 2: Convert to fraction form
    78,614,764,144.80/117,922,146,217.20 = 34,534,921,840.80/x
  3. Step 3: Cross multiply
    78,614,764,144.80x = 117,922,146,217.20 × 34,534,921,840.80
  4. Step 4: Simplify right side
    78,614,764,144.80x = 4,072,432,102,910,391,746,560
  5. Step 5: Solve for x
    x = 4,072,432,102,910,391,746,560/78,614,764,144.80
  6. Step 6: Final answer
    x = 51,802,382,761.20

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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.