Home / 272,105,011.72-408,073,799.22-77,964,409.36

Finding the Fourth Proportional to 272,105,011.72, 408,073,799.22 and 77,964,409.36

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Solution

The fourth proportional to 272,105,011.72, 408,073,799.22 and 77,964,409.36 is: 116,922,626.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,105,011.72 : 408,073,799.22 = 77,964,409.36 : x
  2. Step 2: Convert to fraction form
    272,105,011.72/408,073,799.22 = 77,964,409.36/x
  3. Step 3: Cross multiply
    272,105,011.72x = 408,073,799.22 × 77,964,409.36
  4. Step 4: Simplify right side
    272,105,011.72x = 31,815,232,731,478,532
  5. Step 5: Solve for x
    x = 31,815,232,731,478,532/272,105,011.72
  6. Step 6: Final answer
    x = 116,922,626.78

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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.