Home / 291,376,129.62-402,100,104.07-159,217,123.40

Finding the Fourth Proportional to 291,376,129.62, 402,100,104.07 and 159,217,123.40

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Solution

The fourth proportional to 291,376,129.62, 402,100,104.07 and 159,217,123.40 is: 219,720,201.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,376,129.62 : 402,100,104.07 = 159,217,123.40 : x
  2. Step 2: Convert to fraction form
    291,376,129.62/402,100,104.07 = 159,217,123.40/x
  3. Step 3: Cross multiply
    291,376,129.62x = 402,100,104.07 × 159,217,123.40
  4. Step 4: Simplify right side
    291,376,129.62x = 64,021,221,887,666,040
  5. Step 5: Solve for x
    x = 64,021,221,887,666,040/291,376,129.62
  6. Step 6: Final answer
    x = 219,720,201.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.