Home / 279,966,841.60-419,215,430.40-197,641,163.20

Finding the Fourth Proportional to 279,966,841.60, 419,215,430.40 and 197,641,163.20

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Solution

The fourth proportional to 279,966,841.60, 419,215,430.40 and 197,641,163.20 is: 295,942,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,966,841.60 : 419,215,430.40 = 197,641,163.20 : x
  2. Step 2: Convert to fraction form
    279,966,841.60/419,215,430.40 = 197,641,163.20/x
  3. Step 3: Cross multiply
    279,966,841.60x = 419,215,430.40 × 197,641,163.20
  4. Step 4: Simplify right side
    279,966,841.60x = 82,854,225,295,644,624
  5. Step 5: Solve for x
    x = 82,854,225,295,644,624/279,966,841.60
  6. Step 6: Final answer
    x = 295,942,993.90

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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.