Home / 78,536,635.44-117,812,998.08-30,055,264.80

Finding the Fourth Proportional to 78,536,635.44, 117,812,998.08 and 30,055,264.80

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Solution

The fourth proportional to 78,536,635.44, 117,812,998.08 and 30,055,264.80 is: 45,085,975.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,536,635.44 : 117,812,998.08 = 30,055,264.80 : x
  2. Step 2: Convert to fraction form
    78,536,635.44/117,812,998.08 = 30,055,264.80/x
  3. Step 3: Cross multiply
    78,536,635.44x = 117,812,998.08 × 30,055,264.80
  4. Step 4: Simplify right side
    78,536,635.44x = 3,540,900,854,176,291.50
  5. Step 5: Solve for x
    x = 3,540,900,854,176,291.50/78,536,635.44
  6. Step 6: Final answer
    x = 45,085,975.92

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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.