Home / 2,988,348.78-4,123,916.10-1,630,221.78

Finding the Fourth Proportional to 2,988,348.78, 4,123,916.10 and 1,630,221.78

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Solution

The fourth proportional to 2,988,348.78, 4,123,916.10 and 1,630,221.78 is: 2,249,703.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988,348.78 : 4,123,916.10 = 1,630,221.78 : x
  2. Step 2: Convert to fraction form
    2,988,348.78/4,123,916.10 = 1,630,221.78/x
  3. Step 3: Cross multiply
    2,988,348.78x = 4,123,916.10 × 1,630,221.78
  4. Step 4: Simplify right side
    2,988,348.78x = 6,722,897,845,112.66
  5. Step 5: Solve for x
    x = 6,722,897,845,112.66/2,988,348.78
  6. Step 6: Final answer
    x = 2,249,703.21

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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.