Home / 84,273,449.40-126,410,174.10-43,275,728.70

Finding the Fourth Proportional to 84,273,449.40, 126,410,174.10 and 43,275,728.70

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Solution

The fourth proportional to 84,273,449.40, 126,410,174.10 and 43,275,728.70 is: 64,913,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,273,449.40 : 126,410,174.10 = 43,275,728.70 : x
  2. Step 2: Convert to fraction form
    84,273,449.40/126,410,174.10 = 43,275,728.70/x
  3. Step 3: Cross multiply
    84,273,449.40x = 126,410,174.10 × 43,275,728.70
  4. Step 4: Simplify right side
    84,273,449.40x = 5,470,492,399,271,367
  5. Step 5: Solve for x
    x = 5,470,492,399,271,367/84,273,449.40
  6. Step 6: Final answer
    x = 64,913,593.05

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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.