Home / 144,440,291.31-199,327,988.36-78,360,789.57

Finding the Fourth Proportional to 144,440,291.31, 199,327,988.36 and 78,360,789.57

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Solution

The fourth proportional to 144,440,291.31, 199,327,988.36 and 78,360,789.57 is: 108,138,099.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,440,291.31 : 199,327,988.36 = 78,360,789.57 : x
  2. Step 2: Convert to fraction form
    144,440,291.31/199,327,988.36 = 78,360,789.57/x
  3. Step 3: Cross multiply
    144,440,291.31x = 199,327,988.36 × 78,360,789.57
  4. Step 4: Simplify right side
    144,440,291.31x = 15,619,498,550,897,564
  5. Step 5: Solve for x
    x = 15,619,498,550,897,564/144,440,291.31
  6. Step 6: Final answer
    x = 108,138,099.21

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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.