Home / 84,223,346.90-126,335,020.35-80,875,268.60

Finding the Fourth Proportional to 84,223,346.90, 126,335,020.35 and 80,875,268.60

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Solution

The fourth proportional to 84,223,346.90, 126,335,020.35 and 80,875,268.60 is: 121,312,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,223,346.90 : 126,335,020.35 = 80,875,268.60 : x
  2. Step 2: Convert to fraction form
    84,223,346.90/126,335,020.35 = 80,875,268.60/x
  3. Step 3: Cross multiply
    84,223,346.90x = 126,335,020.35 × 80,875,268.60
  4. Step 4: Simplify right side
    84,223,346.90x = 10,217,378,704,392,714
  5. Step 5: Solve for x
    x = 10,217,378,704,392,714/84,223,346.90
  6. Step 6: Final answer
    x = 121,312,902.90

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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.