Home / 66,115,204.40-99,172,806.60-20,690,922.80

Finding the Fourth Proportional to 66,115,204.40, 99,172,806.60 and 20,690,922.80

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Solution

The fourth proportional to 66,115,204.40, 99,172,806.60 and 20,690,922.80 is: 31,036,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,115,204.40 : 99,172,806.60 = 20,690,922.80 : x
  2. Step 2: Convert to fraction form
    66,115,204.40/99,172,806.60 = 20,690,922.80/x
  3. Step 3: Cross multiply
    66,115,204.40x = 99,172,806.60 × 20,690,922.80
  4. Step 4: Simplify right side
    66,115,204.40x = 2,051,976,885,219,930.50
  5. Step 5: Solve for x
    x = 2,051,976,885,219,930.50/66,115,204.40
  6. Step 6: Final answer
    x = 31,036,384.20

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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.