Home / 140,529,182.98-193,930,244.13-78,649,514.86

Finding the Fourth Proportional to 140,529,182.98, 193,930,244.13 and 78,649,514.86

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Solution

The fourth proportional to 140,529,182.98, 193,930,244.13 and 78,649,514.86 is: 108,536,314.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,529,182.98 : 193,930,244.13 = 78,649,514.86 : x
  2. Step 2: Convert to fraction form
    140,529,182.98/193,930,244.13 = 78,649,514.86/x
  3. Step 3: Cross multiply
    140,529,182.98x = 193,930,244.13 × 78,649,514.86
  4. Step 4: Simplify right side
    140,529,182.98x = 15,252,519,617,505,862
  5. Step 5: Solve for x
    x = 15,252,519,617,505,862/140,529,182.98
  6. Step 6: Final answer
    x = 108,536,314.62

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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.