Home / 220,542,542.80-330,813,814.20-217,141,320.40

Finding the Fourth Proportional to 220,542,542.80, 330,813,814.20 and 217,141,320.40

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Solution

The fourth proportional to 220,542,542.80, 330,813,814.20 and 217,141,320.40 is: 325,711,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,542,542.80 : 330,813,814.20 = 217,141,320.40 : x
  2. Step 2: Convert to fraction form
    220,542,542.80/330,813,814.20 = 217,141,320.40/x
  3. Step 3: Cross multiply
    220,542,542.80x = 330,813,814.20 × 217,141,320.40
  4. Step 4: Simplify right side
    220,542,542.80x = 71,833,348,421,948,272
  5. Step 5: Solve for x
    x = 71,833,348,421,948,272/220,542,542.80
  6. Step 6: Final answer
    x = 325,711,980.60

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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.