Home / 6,781,131.84-10,171,776.75-1,988,916.69

Finding the Fourth Proportional to 6,781,131.84, 10,171,776.75 and 1,988,916.69

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Solution

The fourth proportional to 6,781,131.84, 10,171,776.75 and 1,988,916.69 is: 2,983,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781,131.84 : 10,171,776.75 = 1,988,916.69 : x
  2. Step 2: Convert to fraction form
    6,781,131.84/10,171,776.75 = 1,988,916.69/x
  3. Step 3: Cross multiply
    6,781,131.84x = 10,171,776.75 × 1,988,916.69
  4. Step 4: Simplify right side
    6,781,131.84x = 20,230,816,545,028.96
  5. Step 5: Solve for x
    x = 20,230,816,545,028.96/6,781,131.84
  6. Step 6: Final answer
    x = 2,983,398.20

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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.