Home / 140,261,063.40-193,559,702.76-78,381,385.56

Finding the Fourth Proportional to 140,261,063.40, 193,559,702.76 and 78,381,385.56

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Solution

The fourth proportional to 140,261,063.40, 193,559,702.76 and 78,381,385.56 is: 108,165,996.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,261,063.40 : 193,559,702.76 = 78,381,385.56 : x
  2. Step 2: Convert to fraction form
    140,261,063.40/193,559,702.76 = 78,381,385.56/x
  3. Step 3: Cross multiply
    140,261,063.40x = 193,559,702.76 × 78,381,385.56
  4. Step 4: Simplify right side
    140,261,063.40x = 15,171,477,690,910,556
  5. Step 5: Solve for x
    x = 15,171,477,690,910,556/140,261,063.40
  6. Step 6: Final answer
    x = 108,165,996.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.