Home / 2,790,126.72-4,175,634.60-1,938,159.36

Finding the Fourth Proportional to 2,790,126.72, 4,175,634.60 and 1,938,159.36

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Solution

The fourth proportional to 2,790,126.72, 4,175,634.60 and 1,938,159.36 is: 2,900,601.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790,126.72 : 4,175,634.60 = 1,938,159.36 : x
  2. Step 2: Convert to fraction form
    2,790,126.72/4,175,634.60 = 1,938,159.36/x
  3. Step 3: Cross multiply
    2,790,126.72x = 4,175,634.60 × 1,938,159.36
  4. Step 4: Simplify right side
    2,790,126.72x = 8,093,045,283,929.86
  5. Step 5: Solve for x
    x = 8,093,045,283,929.86/2,790,126.72
  6. Step 6: Final answer
    x = 2,900,601.33

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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.