Home / 122,985,372-169,719,850.61-67,231,036.47

Finding the Fourth Proportional to 122,985,372, 169,719,850.61 and 67,231,036.47

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Solution

The fourth proportional to 122,985,372, 169,719,850.61 and 67,231,036.47 is: 92,778,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,985,372 : 169,719,850.61 = 67,231,036.47 : x
  2. Step 2: Convert to fraction form
    122,985,372/169,719,850.61 = 67,231,036.47/x
  3. Step 3: Cross multiply
    122,985,372x = 169,719,850.61 × 67,231,036.47
  4. Step 4: Simplify right side
    122,985,372x = 11,410,441,466,043,862
  5. Step 5: Solve for x
    x = 11,410,441,466,043,862/122,985,372
  6. Step 6: Final answer
    x = 92,778,850.69

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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.