Home / 144,292,390.88-199,118,164.82-78,211,470.37

Finding the Fourth Proportional to 144,292,390.88, 199,118,164.82 and 78,211,470.37

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Solution

The fourth proportional to 144,292,390.88, 199,118,164.82 and 78,211,470.37 is: 107,928,937.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,292,390.88 : 199,118,164.82 = 78,211,470.37 : x
  2. Step 2: Convert to fraction form
    144,292,390.88/199,118,164.82 = 78,211,470.37/x
  3. Step 3: Cross multiply
    144,292,390.88x = 199,118,164.82 × 78,211,470.37
  4. Step 4: Simplify right side
    144,292,390.88x = 15,573,324,446,561,556
  5. Step 5: Solve for x
    x = 15,573,324,446,561,556/144,292,390.88
  6. Step 6: Final answer
    x = 107,928,937.57

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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.