Home / 78,079,855.74-107,725,578.87-45,035,674.48

Finding the Fourth Proportional to 78,079,855.74, 107,725,578.87 and 45,035,674.48

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Solution

The fourth proportional to 78,079,855.74, 107,725,578.87 and 45,035,674.48 is: 62,135,029.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,079,855.74 : 107,725,578.87 = 45,035,674.48 : x
  2. Step 2: Convert to fraction form
    78,079,855.74/107,725,578.87 = 45,035,674.48/x
  3. Step 3: Cross multiply
    78,079,855.74x = 107,725,578.87 × 45,035,674.48
  4. Step 4: Simplify right side
    78,079,855.74x = 4,851,494,103,208,876
  5. Step 5: Solve for x
    x = 4,851,494,103,208,876/78,079,855.74
  6. Step 6: Final answer
    x = 62,135,029.03

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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.