Home / 121,609,695.15-167,821,541.10-65,855,211.66

Finding the Fourth Proportional to 121,609,695.15, 167,821,541.10 and 65,855,211.66

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Solution

The fourth proportional to 121,609,695.15, 167,821,541.10 and 65,855,211.66 is: 90,880,279.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,609,695.15 : 167,821,541.10 = 65,855,211.66 : x
  2. Step 2: Convert to fraction form
    121,609,695.15/167,821,541.10 = 65,855,211.66/x
  3. Step 3: Cross multiply
    121,609,695.15x = 167,821,541.10 × 65,855,211.66
  4. Step 4: Simplify right side
    121,609,695.15x = 11,051,923,110,247,888
  5. Step 5: Solve for x
    x = 11,051,923,110,247,888/121,609,695.15
  6. Step 6: Final answer
    x = 90,880,279.71

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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.