Home / 408,945,354.70-613,402,285.65-136,316,121.70

Finding the Fourth Proportional to 408,945,354.70, 613,402,285.65 and 136,316,121.70

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Solution

The fourth proportional to 408,945,354.70, 613,402,285.65 and 136,316,121.70 is: 204,468,933.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,945,354.70 : 613,402,285.65 = 136,316,121.70 : x
  2. Step 2: Convert to fraction form
    408,945,354.70/613,402,285.65 = 136,316,121.70/x
  3. Step 3: Cross multiply
    408,945,354.70x = 613,402,285.65 × 136,316,121.70
  4. Step 4: Simplify right side
    408,945,354.70x = 83,616,620,621,723,552
  5. Step 5: Solve for x
    x = 83,616,620,621,723,552/408,945,354.70
  6. Step 6: Final answer
    x = 204,468,933.71

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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.