Home / 220,480,806.92-330,498,889.74-138,658,161.32

Finding the Fourth Proportional to 220,480,806.92, 330,498,889.74 and 138,658,161.32

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Solution

The fourth proportional to 220,480,806.92, 330,498,889.74 and 138,658,161.32 is: 207,847,426.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,480,806.92 : 330,498,889.74 = 138,658,161.32 : x
  2. Step 2: Convert to fraction form
    220,480,806.92/330,498,889.74 = 138,658,161.32/x
  3. Step 3: Cross multiply
    220,480,806.92x = 330,498,889.74 × 138,658,161.32
  4. Step 4: Simplify right side
    220,480,806.92x = 45,826,368,369,649,808
  5. Step 5: Solve for x
    x = 45,826,368,369,649,808/220,480,806.92
  6. Step 6: Final answer
    x = 207,847,426.77

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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.