Home / 289,081,703.07-398,933,260.16-156,922,791.12

Finding the Fourth Proportional to 289,081,703.07, 398,933,260.16 and 156,922,791.12

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Solution

The fourth proportional to 289,081,703.07, 398,933,260.16 and 156,922,791.12 is: 216,553,728.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,081,703.07 : 398,933,260.16 = 156,922,791.12 : x
  2. Step 2: Convert to fraction form
    289,081,703.07/398,933,260.16 = 156,922,791.12/x
  3. Step 3: Cross multiply
    289,081,703.07x = 398,933,260.16 × 156,922,791.12
  4. Step 4: Simplify right side
    289,081,703.07x = 62,601,720,654,123,680
  5. Step 5: Solve for x
    x = 62,601,720,654,123,680/289,081,703.07
  6. Step 6: Final answer
    x = 216,553,728.55

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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.