Home / 220,180,478.80-330,270,718.20-66,826,289.20

Finding the Fourth Proportional to 220,180,478.80, 330,270,718.20 and 66,826,289.20

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Solution

The fourth proportional to 220,180,478.80, 330,270,718.20 and 66,826,289.20 is: 100,239,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,180,478.80 : 330,270,718.20 = 66,826,289.20 : x
  2. Step 2: Convert to fraction form
    220,180,478.80/330,270,718.20 = 66,826,289.20/x
  3. Step 3: Cross multiply
    220,180,478.80x = 330,270,718.20 × 66,826,289.20
  4. Step 4: Simplify right side
    220,180,478.80x = 22,070,766,528,724,904
  5. Step 5: Solve for x
    x = 22,070,766,528,724,904/220,180,478.80
  6. Step 6: Final answer
    x = 100,239,433.80

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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.