Home / 159,644,672.70-239,467,009.05-121,380,920.70

Finding the Fourth Proportional to 159,644,672.70, 239,467,009.05 and 121,380,920.70

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Solution

The fourth proportional to 159,644,672.70, 239,467,009.05 and 121,380,920.70 is: 182,071,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,644,672.70 : 239,467,009.05 = 121,380,920.70 : x
  2. Step 2: Convert to fraction form
    159,644,672.70/239,467,009.05 = 121,380,920.70/x
  3. Step 3: Cross multiply
    159,644,672.70x = 239,467,009.05 × 121,380,920.70
  4. Step 4: Simplify right side
    159,644,672.70x = 29,066,726,035,764,236
  5. Step 5: Solve for x
    x = 29,066,726,035,764,236/159,644,672.70
  6. Step 6: Final answer
    x = 182,071,381.05

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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.