Home / 74,855,998.20-112,228,010.10-40,815,780.60

Finding the Fourth Proportional to 74,855,998.20, 112,228,010.10 and 40,815,780.60

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Solution

The fourth proportional to 74,855,998.20, 112,228,010.10 and 40,815,780.60 is: 61,193,143.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,855,998.20 : 112,228,010.10 = 40,815,780.60 : x
  2. Step 2: Convert to fraction form
    74,855,998.20/112,228,010.10 = 40,815,780.60/x
  3. Step 3: Cross multiply
    74,855,998.20x = 112,228,010.10 × 40,815,780.60
  4. Step 4: Simplify right side
    74,855,998.20x = 4,580,673,837,416,184
  5. Step 5: Solve for x
    x = 4,580,673,837,416,184/74,855,998.20
  6. Step 6: Final answer
    x = 61,193,143.47

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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.