Home / 84,223,346.40-126,335,019.60-80,875,268.10

Finding the Fourth Proportional to 84,223,346.40, 126,335,019.60 and 80,875,268.10

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Solution

The fourth proportional to 84,223,346.40, 126,335,019.60 and 80,875,268.10 is: 121,312,902.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,223,346.40 : 126,335,019.60 = 80,875,268.10 : x
  2. Step 2: Convert to fraction form
    84,223,346.40/126,335,019.60 = 80,875,268.10/x
  3. Step 3: Cross multiply
    84,223,346.40x = 126,335,019.60 × 80,875,268.10
  4. Step 4: Simplify right side
    84,223,346.40x = 10,217,378,580,568,754
  5. Step 5: Solve for x
    x = 10,217,378,580,568,754/84,223,346.40
  6. Step 6: Final answer
    x = 121,312,902.15

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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.