Home / 78,229,968.30-117,344,952.45-45,897,360.30

Finding the Fourth Proportional to 78,229,968.30, 117,344,952.45 and 45,897,360.30

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Solution

The fourth proportional to 78,229,968.30, 117,344,952.45 and 45,897,360.30 is: 68,846,040.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,229,968.30 : 117,344,952.45 = 45,897,360.30 : x
  2. Step 2: Convert to fraction form
    78,229,968.30/117,344,952.45 = 45,897,360.30/x
  3. Step 3: Cross multiply
    78,229,968.30x = 117,344,952.45 × 45,897,360.30
  4. Step 4: Simplify right side
    78,229,968.30x = 5,385,823,561,984,018
  5. Step 5: Solve for x
    x = 5,385,823,561,984,018/78,229,968.30
  6. Step 6: Final answer
    x = 68,846,040.45

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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.