Home / 121,650,830.12-167,878,951.67-65,896,250.54

Finding the Fourth Proportional to 121,650,830.12, 167,878,951.67 and 65,896,250.54

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Solution

The fourth proportional to 121,650,830.12, 167,878,951.67 and 65,896,250.54 is: 90,937,262.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,650,830.12 : 167,878,951.67 = 65,896,250.54 : x
  2. Step 2: Convert to fraction form
    121,650,830.12/167,878,951.67 = 65,896,250.54/x
  3. Step 3: Cross multiply
    121,650,830.12x = 167,878,951.67 × 65,896,250.54
  4. Step 4: Simplify right side
    121,650,830.12x = 11,062,593,458,469,994
  5. Step 5: Solve for x
    x = 11,062,593,458,469,994/121,650,830.12
  6. Step 6: Final answer
    x = 90,937,262.39

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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.