Home / 71,870,456.16-107,823,826.89-20,055,015.36

Finding the Fourth Proportional to 71,870,456.16, 107,823,826.89 and 20,055,015.36

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Solution

The fourth proportional to 71,870,456.16, 107,823,826.89 and 20,055,015.36 is: 30,087,585.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,870,456.16 : 107,823,826.89 = 20,055,015.36 : x
  2. Step 2: Convert to fraction form
    71,870,456.16/107,823,826.89 = 20,055,015.36/x
  3. Step 3: Cross multiply
    71,870,456.16x = 107,823,826.89 × 20,055,015.36
  4. Step 4: Simplify right side
    71,870,456.16x = 2,162,408,504,452,931
  5. Step 5: Solve for x
    x = 2,162,408,504,452,931/71,870,456.16
  6. Step 6: Final answer
    x = 30,087,585.64

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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.