Home / 117,222,508.90-161,755,538.25-65,010,634.66

Finding the Fourth Proportional to 117,222,508.90, 161,755,538.25 and 65,010,634.66

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Solution

The fourth proportional to 117,222,508.90, 161,755,538.25 and 65,010,634.66 is: 89,708,284.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,222,508.90 : 161,755,538.25 = 65,010,634.66 : x
  2. Step 2: Convert to fraction form
    117,222,508.90/161,755,538.25 = 65,010,634.66/x
  3. Step 3: Cross multiply
    117,222,508.90x = 161,755,538.25 × 65,010,634.66
  4. Step 4: Simplify right side
    117,222,508.90x = 10,515,830,201,402,406
  5. Step 5: Solve for x
    x = 10,515,830,201,402,406/117,222,508.90
  6. Step 6: Final answer
    x = 89,708,284.70

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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.