Home / 78,494,207,777.28-108,321,455,694.96-42,851,522,789.28

Finding the Fourth Proportional to 78,494,207,777.28, 108,321,455,694.96 and 42,851,522,789.28

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Solution

The fourth proportional to 78,494,207,777.28, 108,321,455,694.96 and 42,851,522,789.28 is: 59,134,800,626.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,494,207,777.28 : 108,321,455,694.96 = 42,851,522,789.28 : x
  2. Step 2: Convert to fraction form
    78,494,207,777.28/108,321,455,694.96 = 42,851,522,789.28/x
  3. Step 3: Cross multiply
    78,494,207,777.28x = 108,321,455,694.96 × 42,851,522,789.28
  4. Step 4: Simplify right side
    78,494,207,777.28x = 4,641,739,327,280,562,307,072
  5. Step 5: Solve for x
    x = 4,641,739,327,280,562,307,072/78,494,207,777.28
  6. Step 6: Final answer
    x = 59,134,800,626.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.