Home / 72,383,764.25-99,890,263.36-39,344,091.12

Finding the Fourth Proportional to 72,383,764.25, 99,890,263.36 and 39,344,091.12

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Solution

The fourth proportional to 72,383,764.25, 99,890,263.36 and 39,344,091.12 is: 54,295,209.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,383,764.25 : 99,890,263.36 = 39,344,091.12 : x
  2. Step 2: Convert to fraction form
    72,383,764.25/99,890,263.36 = 39,344,091.12/x
  3. Step 3: Cross multiply
    72,383,764.25x = 99,890,263.36 × 39,344,091.12
  4. Step 4: Simplify right side
    72,383,764.25x = 3,930,091,623,685,817
  5. Step 5: Solve for x
    x = 3,930,091,623,685,817/72,383,764.25
  6. Step 6: Final answer
    x = 54,295,209.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.