Home / 68,919,215.88-103,419,009.54-25,818,694.68

Finding the Fourth Proportional to 68,919,215.88, 103,419,009.54 and 25,818,694.68

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Solution

The fourth proportional to 68,919,215.88, 103,419,009.54 and 25,818,694.68 is: 38,743,096.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,919,215.88 : 103,419,009.54 = 25,818,694.68 : x
  2. Step 2: Convert to fraction form
    68,919,215.88/103,419,009.54 = 25,818,694.68/x
  3. Step 3: Cross multiply
    68,919,215.88x = 103,419,009.54 × 25,818,694.68
  4. Step 4: Simplify right side
    68,919,215.88x = 2,670,143,831,421,267.50
  5. Step 5: Solve for x
    x = 2,670,143,831,421,267.50/68,919,215.88
  6. Step 6: Final answer
    x = 38,743,096.50

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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.