Home / 66,498,478.20-99,747,717.30-43,804,999.80

Finding the Fourth Proportional to 66,498,478.20, 99,747,717.30 and 43,804,999.80

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Solution

The fourth proportional to 66,498,478.20, 99,747,717.30 and 43,804,999.80 is: 65,707,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,498,478.20 : 99,747,717.30 = 43,804,999.80 : x
  2. Step 2: Convert to fraction form
    66,498,478.20/99,747,717.30 = 43,804,999.80/x
  3. Step 3: Cross multiply
    66,498,478.20x = 99,747,717.30 × 43,804,999.80
  4. Step 4: Simplify right side
    66,498,478.20x = 4,369,448,736,376,956
  5. Step 5: Solve for x
    x = 4,369,448,736,376,956/66,498,478.20
  6. Step 6: Final answer
    x = 65,707,499.70

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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.