Home / 151,610,840.37-209,222,959.91-81,996,221.43

Finding the Fourth Proportional to 151,610,840.37, 209,222,959.91 and 81,996,221.43

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Solution

The fourth proportional to 151,610,840.37, 209,222,959.91 and 81,996,221.43 is: 113,154,785.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,610,840.37 : 209,222,959.91 = 81,996,221.43 : x
  2. Step 2: Convert to fraction form
    151,610,840.37/209,222,959.91 = 81,996,221.43/x
  3. Step 3: Cross multiply
    151,610,840.37x = 209,222,959.91 × 81,996,221.43
  4. Step 4: Simplify right side
    151,610,840.37x = 17,155,492,148,610,394
  5. Step 5: Solve for x
    x = 17,155,492,148,610,394/151,610,840.37
  6. Step 6: Final answer
    x = 113,154,785.68

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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.