Home / 272,040,838.40-408,085,762.88-87,812,682.56

Finding the Fourth Proportional to 272,040,838.40, 408,085,762.88 and 87,812,682.56

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Solution

The fourth proportional to 272,040,838.40, 408,085,762.88 and 87,812,682.56 is: 131,726,933.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,040,838.40 : 408,085,762.88 = 87,812,682.56 : x
  2. Step 2: Convert to fraction form
    272,040,838.40/408,085,762.88 = 87,812,682.56/x
  3. Step 3: Cross multiply
    272,040,838.40x = 408,085,762.88 × 87,812,682.56
  4. Step 4: Simplify right side
    272,040,838.40x = 35,835,105,553,036,872
  5. Step 5: Solve for x
    x = 35,835,105,553,036,872/272,040,838.40
  6. Step 6: Final answer
    x = 131,726,933.96

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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.