Home / 77,015,443.28-115,498,774.92-25,188,071.12

Finding the Fourth Proportional to 77,015,443.28, 115,498,774.92 and 25,188,071.12

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Solution

The fourth proportional to 77,015,443.28, 115,498,774.92 and 25,188,071.12 is: 37,774,129.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,015,443.28 : 115,498,774.92 = 25,188,071.12 : x
  2. Step 2: Convert to fraction form
    77,015,443.28/115,498,774.92 = 25,188,071.12/x
  3. Step 3: Cross multiply
    77,015,443.28x = 115,498,774.92 × 25,188,071.12
  4. Step 4: Simplify right side
    77,015,443.28x = 2,909,191,356,957,832.50
  5. Step 5: Solve for x
    x = 2,909,191,356,957,832.50/77,015,443.28
  6. Step 6: Final answer
    x = 37,774,129.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.