Home / 685,092,227.55-945,428,186.27-371,826,441.51

Finding the Fourth Proportional to 685,092,227.55, 945,428,186.27 and 371,826,441.51

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Solution

The fourth proportional to 685,092,227.55, 945,428,186.27 and 371,826,441.51 is: 513,120,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,092,227.55 : 945,428,186.27 = 371,826,441.51 : x
  2. Step 2: Convert to fraction form
    685,092,227.55/945,428,186.27 = 371,826,441.51/x
  3. Step 3: Cross multiply
    685,092,227.55x = 945,428,186.27 × 371,826,441.51
  4. Step 4: Simplify right side
    685,092,227.55x = 351,535,198,204,027,520
  5. Step 5: Solve for x
    x = 351,535,198,204,027,520/685,092,227.55
  6. Step 6: Final answer
    x = 513,120,984.40

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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.