Home / 2,156,968.38-2,977,695-1,341,434.78

Finding the Fourth Proportional to 2,156,968.38, 2,977,695 and 1,341,434.78

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Solution

The fourth proportional to 2,156,968.38, 2,977,695 and 1,341,434.78 is: 1,851,850.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,968.38 : 2,977,695 = 1,341,434.78 : x
  2. Step 2: Convert to fraction form
    2,156,968.38/2,977,695 = 1,341,434.78/x
  3. Step 3: Cross multiply
    2,156,968.38x = 2,977,695 × 1,341,434.78
  4. Step 4: Simplify right side
    2,156,968.38x = 3,994,383,637,232.10
  5. Step 5: Solve for x
    x = 3,994,383,637,232.10/2,156,968.38
  6. Step 6: Final answer
    x = 1,851,850.81

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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.