Home / 121,418,522.57-167,558,062.52-65,663,941.77

Finding the Fourth Proportional to 121,418,522.57, 167,558,062.52 and 65,663,941.77

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Solution

The fourth proportional to 121,418,522.57, 167,558,062.52 and 65,663,941.77 is: 90,616,510.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,418,522.57 : 167,558,062.52 = 65,663,941.77 : x
  2. Step 2: Convert to fraction form
    121,418,522.57/167,558,062.52 = 65,663,941.77/x
  3. Step 3: Cross multiply
    121,418,522.57x = 167,558,062.52 × 65,663,941.77
  4. Step 4: Simplify right side
    121,418,522.57x = 11,002,522,860,571,460
  5. Step 5: Solve for x
    x = 11,002,522,860,571,460/121,418,522.57
  6. Step 6: Final answer
    x = 90,616,510.79

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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.