Home / 80,256,603.20-120,384,904.80-57,749,748.80

Finding the Fourth Proportional to 80,256,603.20, 120,384,904.80 and 57,749,748.80

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Solution

The fourth proportional to 80,256,603.20, 120,384,904.80 and 57,749,748.80 is: 86,624,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,256,603.20 : 120,384,904.80 = 57,749,748.80 : x
  2. Step 2: Convert to fraction form
    80,256,603.20/120,384,904.80 = 57,749,748.80/x
  3. Step 3: Cross multiply
    80,256,603.20x = 120,384,904.80 × 57,749,748.80
  4. Step 4: Simplify right side
    80,256,603.20x = 6,952,198,011,511,914
  5. Step 5: Solve for x
    x = 6,952,198,011,511,914/80,256,603.20
  6. Step 6: Final answer
    x = 86,624,623.20

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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.