Home / 5,100,864.68-7,649,875.82-1,689,418.41

Finding the Fourth Proportional to 5,100,864.68, 7,649,875.82 and 1,689,418.41

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Solution

The fourth proportional to 5,100,864.68, 7,649,875.82 and 1,689,418.41 is: 2,533,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100,864.68 : 7,649,875.82 = 1,689,418.41 : x
  2. Step 2: Convert to fraction form
    5,100,864.68/7,649,875.82 = 1,689,418.41/x
  3. Step 3: Cross multiply
    5,100,864.68x = 7,649,875.82 × 1,689,418.41
  4. Step 4: Simplify right side
    5,100,864.68x = 12,923,841,048,745.39
  5. Step 5: Solve for x
    x = 12,923,841,048,745.39/5,100,864.68
  6. Step 6: Final answer
    x = 2,533,656.91

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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.