Home / 65,378,634.43-90,222,512.79-36,009,967.90

Finding the Fourth Proportional to 65,378,634.43, 90,222,512.79 and 36,009,967.90

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Solution

The fourth proportional to 65,378,634.43, 90,222,512.79 and 36,009,967.90 is: 49,693,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,378,634.43 : 90,222,512.79 = 36,009,967.90 : x
  2. Step 2: Convert to fraction form
    65,378,634.43/90,222,512.79 = 36,009,967.90/x
  3. Step 3: Cross multiply
    65,378,634.43x = 90,222,512.79 × 36,009,967.90
  4. Step 4: Simplify right side
    65,378,634.43x = 3,248,909,789,425,239.50
  5. Step 5: Solve for x
    x = 3,248,909,789,425,239.50/65,378,634.43
  6. Step 6: Final answer
    x = 49,693,754.20

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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.