Home / 220,170,127.80-330,255,191.70-66,815,938.20

Finding the Fourth Proportional to 220,170,127.80, 330,255,191.70 and 66,815,938.20

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Solution

The fourth proportional to 220,170,127.80, 330,255,191.70 and 66,815,938.20 is: 100,223,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,170,127.80 : 330,255,191.70 = 66,815,938.20 : x
  2. Step 2: Convert to fraction form
    220,170,127.80/330,255,191.70 = 66,815,938.20/x
  3. Step 3: Cross multiply
    220,170,127.80x = 330,255,191.70 × 66,815,938.20
  4. Step 4: Simplify right side
    220,170,127.80x = 22,066,310,478,856,352
  5. Step 5: Solve for x
    x = 22,066,310,478,856,352/220,170,127.80
  6. Step 6: Final answer
    x = 100,223,907.30

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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.