Home / 121,581,949.83-167,782,868.97-65,827,363.41

Finding the Fourth Proportional to 121,581,949.83, 167,782,868.97 and 65,827,363.41

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Solution

The fourth proportional to 121,581,949.83, 167,782,868.97 and 65,827,363.41 is: 90,841,641.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,581,949.83 : 167,782,868.97 = 65,827,363.41 : x
  2. Step 2: Convert to fraction form
    121,581,949.83/167,782,868.97 = 65,827,363.41/x
  3. Step 3: Cross multiply
    121,581,949.83x = 167,782,868.97 × 65,827,363.41
  4. Step 4: Simplify right side
    121,581,949.83x = 11,044,703,889,660,602
  5. Step 5: Solve for x
    x = 11,044,703,889,660,602/121,581,949.83
  6. Step 6: Final answer
    x = 90,841,641.42

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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.