Home / 3,899,851.10-5,381,776.14-2,180,978.45

Finding the Fourth Proportional to 3,899,851.10, 5,381,776.14 and 2,180,978.45

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Solution

The fourth proportional to 3,899,851.10, 5,381,776.14 and 2,180,978.45 is: 3,009,739.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,851.10 : 5,381,776.14 = 2,180,978.45 : x
  2. Step 2: Convert to fraction form
    3,899,851.10/5,381,776.14 = 2,180,978.45/x
  3. Step 3: Cross multiply
    3,899,851.10x = 5,381,776.14 × 2,180,978.45
  4. Step 4: Simplify right side
    3,899,851.10x = 11,737,537,784,064.18
  5. Step 5: Solve for x
    x = 11,737,537,784,064.18/3,899,851.10
  6. Step 6: Final answer
    x = 3,009,739.98

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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.