Home / 121,644,500.36-167,734,920.49-77,521,644.14

Finding the Fourth Proportional to 121,644,500.36, 167,734,920.49 and 77,521,644.14

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Solution

The fourth proportional to 121,644,500.36, 167,734,920.49 and 77,521,644.14 is: 106,894,161.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,644,500.36 : 167,734,920.49 = 77,521,644.14 : x
  2. Step 2: Convert to fraction form
    121,644,500.36/167,734,920.49 = 77,521,644.14/x
  3. Step 3: Cross multiply
    121,644,500.36x = 167,734,920.49 × 77,521,644.14
  4. Step 4: Simplify right side
    121,644,500.36x = 13,003,086,815,044,498
  5. Step 5: Solve for x
    x = 13,003,086,815,044,498/121,644,500.36
  6. Step 6: Final answer
    x = 106,894,161.08

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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.