Home / 78,205,198.89-107,925,651.89-45,164,847.63

Finding the Fourth Proportional to 78,205,198.89, 107,925,651.89 and 45,164,847.63

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Solution

The fourth proportional to 78,205,198.89, 107,925,651.89 and 45,164,847.63 is: 62,328,920.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,205,198.89 : 107,925,651.89 = 45,164,847.63 : x
  2. Step 2: Convert to fraction form
    78,205,198.89/107,925,651.89 = 45,164,847.63/x
  3. Step 3: Cross multiply
    78,205,198.89x = 107,925,651.89 × 45,164,847.63
  4. Step 4: Simplify right side
    78,205,198.89x = 4,874,445,622,980,272
  5. Step 5: Solve for x
    x = 4,874,445,622,980,272/78,205,198.89
  6. Step 6: Final answer
    x = 62,328,920.48

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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.