Home / 144,014,209.51-198,740,110.94-77,934,691.21

Finding the Fourth Proportional to 144,014,209.51, 198,740,110.94 and 77,934,691.21

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Solution

The fourth proportional to 144,014,209.51, 198,740,110.94 and 77,934,691.21 is: 107,550,145.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,014,209.51 : 198,740,110.94 = 77,934,691.21 : x
  2. Step 2: Convert to fraction form
    144,014,209.51/198,740,110.94 = 77,934,691.21/x
  3. Step 3: Cross multiply
    144,014,209.51x = 198,740,110.94 × 77,934,691.21
  4. Step 4: Simplify right side
    144,014,209.51x = 15,488,749,177,150,042
  5. Step 5: Solve for x
    x = 15,488,749,177,150,042/144,014,209.51
  6. Step 6: Final answer
    x = 107,550,145.43

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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.