Home / 220,176,278.40-330,180,436.80-66,771,350.40

Finding the Fourth Proportional to 220,176,278.40, 330,180,436.80 and 66,771,350.40

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Solution

The fourth proportional to 220,176,278.40, 330,180,436.80 and 66,771,350.40 is: 100,131,557.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,176,278.40 : 330,180,436.80 = 66,771,350.40 : x
  2. Step 2: Convert to fraction form
    220,176,278.40/330,180,436.80 = 66,771,350.40/x
  3. Step 3: Cross multiply
    220,176,278.40x = 330,180,436.80 × 66,771,350.40
  4. Step 4: Simplify right side
    220,176,278.40x = 22,046,593,640,797,856
  5. Step 5: Solve for x
    x = 22,046,593,640,797,856/220,176,278.40
  6. Step 6: Final answer
    x = 100,131,557.32

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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.