Home / 66,448,570.20-99,672,855.30-40,806,432.60

Finding the Fourth Proportional to 66,448,570.20, 99,672,855.30 and 40,806,432.60

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Solution

The fourth proportional to 66,448,570.20, 99,672,855.30 and 40,806,432.60 is: 61,209,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,448,570.20 : 99,672,855.30 = 40,806,432.60 : x
  2. Step 2: Convert to fraction form
    66,448,570.20/99,672,855.30 = 40,806,432.60/x
  3. Step 3: Cross multiply
    66,448,570.20x = 99,672,855.30 × 40,806,432.60
  4. Step 4: Simplify right side
    66,448,570.20x = 4,067,293,651,849,003
  5. Step 5: Solve for x
    x = 4,067,293,651,849,003/66,448,570.20
  6. Step 6: Final answer
    x = 61,209,648.90

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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.