Home / 121,467,131.93-167,644,685.95-74,450,358.72

Finding the Fourth Proportional to 121,467,131.93, 167,644,685.95 and 74,450,358.72

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Solution

The fourth proportional to 121,467,131.93, 167,644,685.95 and 74,450,358.72 is: 102,753,780.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,467,131.93 : 167,644,685.95 = 74,450,358.72 : x
  2. Step 2: Convert to fraction form
    121,467,131.93/167,644,685.95 = 74,450,358.72/x
  3. Step 3: Cross multiply
    121,467,131.93x = 167,644,685.95 × 74,450,358.72
  4. Step 4: Simplify right side
    121,467,131.93x = 12,481,207,006,479,242
  5. Step 5: Solve for x
    x = 12,481,207,006,479,242/121,467,131.93
  6. Step 6: Final answer
    x = 102,753,780.45

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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.