Home / 94,643,999.70-141,965,999.55-78,488,193.30

Finding the Fourth Proportional to 94,643,999.70, 141,965,999.55 and 78,488,193.30

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Solution

The fourth proportional to 94,643,999.70, 141,965,999.55 and 78,488,193.30 is: 117,732,289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,643,999.70 : 141,965,999.55 = 78,488,193.30 : x
  2. Step 2: Convert to fraction form
    94,643,999.70/141,965,999.55 = 78,488,193.30/x
  3. Step 3: Cross multiply
    94,643,999.70x = 141,965,999.55 × 78,488,193.30
  4. Step 4: Simplify right side
    94,643,999.70x = 11,142,654,814,708,114
  5. Step 5: Solve for x
    x = 11,142,654,814,708,114/94,643,999.70
  6. Step 6: Final answer
    x = 117,732,289.95

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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.