Home / 121,609,755.90-167,821,624.98-65,855,272.55

Finding the Fourth Proportional to 121,609,755.90, 167,821,624.98 and 65,855,272.55

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Solution

The fourth proportional to 121,609,755.90, 167,821,624.98 and 65,855,272.55 is: 90,880,363.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,609,755.90 : 167,821,624.98 = 65,855,272.55 : x
  2. Step 2: Convert to fraction form
    121,609,755.90/167,821,624.98 = 65,855,272.55/x
  3. Step 3: Cross multiply
    121,609,755.90x = 167,821,624.98 × 65,855,272.55
  4. Step 4: Simplify right side
    121,609,755.90x = 11,051,938,852,002,680
  5. Step 5: Solve for x
    x = 11,051,938,852,002,680/121,609,755.90
  6. Step 6: Final answer
    x = 90,880,363.75

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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.