Home / 397,402,120.26-548,404,902.51-218,784,225.39

Finding the Fourth Proportional to 397,402,120.26, 548,404,902.51 and 218,784,225.39

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Solution

The fourth proportional to 397,402,120.26, 548,404,902.51 and 218,784,225.39 is: 301,916,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,402,120.26 : 548,404,902.51 = 218,784,225.39 : x
  2. Step 2: Convert to fraction form
    397,402,120.26/548,404,902.51 = 218,784,225.39/x
  3. Step 3: Cross multiply
    397,402,120.26x = 548,404,902.51 × 218,784,225.39
  4. Step 4: Simplify right side
    397,402,120.26x = 119,982,341,792,986,784
  5. Step 5: Solve for x
    x = 119,982,341,792,986,784/397,402,120.26
  6. Step 6: Final answer
    x = 301,916,712.76

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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.