Home / 259,750,952.20-389,626,428.30-77,974,510.60

Finding the Fourth Proportional to 259,750,952.20, 389,626,428.30 and 77,974,510.60

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Solution

The fourth proportional to 259,750,952.20, 389,626,428.30 and 77,974,510.60 is: 116,961,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,750,952.20 : 389,626,428.30 = 77,974,510.60 : x
  2. Step 2: Convert to fraction form
    259,750,952.20/389,626,428.30 = 77,974,510.60/x
  3. Step 3: Cross multiply
    259,750,952.20x = 389,626,428.30 × 77,974,510.60
  4. Step 4: Simplify right side
    259,750,952.20x = 30,380,930,063,518,488
  5. Step 5: Solve for x
    x = 30,380,930,063,518,488/259,750,952.20
  6. Step 6: Final answer
    x = 116,961,765.90

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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.