Home / 259,832,401.32-389,504,474.47-87,188,142.72

Finding the Fourth Proportional to 259,832,401.32, 389,504,474.47 and 87,188,142.72

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Solution

The fourth proportional to 259,832,401.32, 389,504,474.47 and 87,188,142.72 is: 130,700,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,832,401.32 : 389,504,474.47 = 87,188,142.72 : x
  2. Step 2: Convert to fraction form
    259,832,401.32/389,504,474.47 = 87,188,142.72/x
  3. Step 3: Cross multiply
    259,832,401.32x = 389,504,474.47 × 87,188,142.72
  4. Step 4: Simplify right side
    259,832,401.32x = 33,960,171,711,247,712
  5. Step 5: Solve for x
    x = 33,960,171,711,247,712/259,832,401.32
  6. Step 6: Final answer
    x = 130,700,295.80

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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.