Home / 78,546,142.19-117,738,372.15-34,847,480.25

Finding the Fourth Proportional to 78,546,142.19, 117,738,372.15 and 34,847,480.25

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Solution

The fourth proportional to 78,546,142.19, 117,738,372.15 and 34,847,480.25 is: 52,235,354.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,546,142.19 : 117,738,372.15 = 34,847,480.25 : x
  2. Step 2: Convert to fraction form
    78,546,142.19/117,738,372.15 = 34,847,480.25/x
  3. Step 3: Cross multiply
    78,546,142.19x = 117,738,372.15 × 34,847,480.25
  4. Step 4: Simplify right side
    78,546,142.19x = 4,102,885,598,164,275
  5. Step 5: Solve for x
    x = 4,102,885,598,164,275/78,546,142.19
  6. Step 6: Final answer
    x = 52,235,354.71

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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.