Home / 401,192,622.80-601,788,934.20-142,433,999.90

Finding the Fourth Proportional to 401,192,622.80, 601,788,934.20 and 142,433,999.90

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Solution

The fourth proportional to 401,192,622.80, 601,788,934.20 and 142,433,999.90 is: 213,650,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,192,622.80 : 601,788,934.20 = 142,433,999.90 : x
  2. Step 2: Convert to fraction form
    401,192,622.80/601,788,934.20 = 142,433,999.90/x
  3. Step 3: Cross multiply
    401,192,622.80x = 601,788,934.20 × 142,433,999.90
  4. Step 4: Simplify right side
    401,192,622.80x = 85,715,204,993,663,920
  5. Step 5: Solve for x
    x = 85,715,204,993,663,920/401,192,622.80
  6. Step 6: Final answer
    x = 213,650,999.85

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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.