Home / 220,542,400.80-330,813,601.20-217,141,178.40

Finding the Fourth Proportional to 220,542,400.80, 330,813,601.20 and 217,141,178.40

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Solution

The fourth proportional to 220,542,400.80, 330,813,601.20 and 217,141,178.40 is: 325,711,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,542,400.80 : 330,813,601.20 = 217,141,178.40 : x
  2. Step 2: Convert to fraction form
    220,542,400.80/330,813,601.20 = 217,141,178.40/x
  3. Step 3: Cross multiply
    220,542,400.80x = 330,813,601.20 × 217,141,178.40
  4. Step 4: Simplify right side
    220,542,400.80x = 71,833,255,195,315,656
  5. Step 5: Solve for x
    x = 71,833,255,195,315,656/220,542,400.80
  6. Step 6: Final answer
    x = 325,711,767.60

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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.