Home / 78,299,134.68-117,449,883-27,182,777.40

Finding the Fourth Proportional to 78,299,134.68, 117,449,883 and 27,182,777.40

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Solution

The fourth proportional to 78,299,134.68, 117,449,883 and 27,182,777.40 is: 40,774,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,299,134.68 : 117,449,883 = 27,182,777.40 : x
  2. Step 2: Convert to fraction form
    78,299,134.68/117,449,883 = 27,182,777.40/x
  3. Step 3: Cross multiply
    78,299,134.68x = 117,449,883 × 27,182,777.40
  4. Step 4: Simplify right side
    78,299,134.68x = 3,192,614,025,245,044
  5. Step 5: Solve for x
    x = 3,192,614,025,245,044/78,299,134.68
  6. Step 6: Final answer
    x = 40,774,576.10

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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.