Home / 305,910,708.76-422,156,838.83-166,681,470.52

Finding the Fourth Proportional to 305,910,708.76, 422,156,838.83 and 166,681,470.52

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Solution

The fourth proportional to 305,910,708.76, 422,156,838.83 and 166,681,470.52 is: 230,020,462.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,910,708.76 : 422,156,838.83 = 166,681,470.52 : x
  2. Step 2: Convert to fraction form
    305,910,708.76/422,156,838.83 = 166,681,470.52/x
  3. Step 3: Cross multiply
    305,910,708.76x = 422,156,838.83 × 166,681,470.52
  4. Step 4: Simplify right side
    305,910,708.76x = 70,365,722,686,259,040
  5. Step 5: Solve for x
    x = 70,365,722,686,259,040/305,910,708.76
  6. Step 6: Final answer
    x = 230,020,462.41

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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.