Home / 5,055,136.56-6,974,385.12-2,878,139.40

Finding the Fourth Proportional to 5,055,136.56, 6,974,385.12 and 2,878,139.40

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Solution

The fourth proportional to 5,055,136.56, 6,974,385.12 and 2,878,139.40 is: 3,970,862.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055,136.56 : 6,974,385.12 = 2,878,139.40 : x
  2. Step 2: Convert to fraction form
    5,055,136.56/6,974,385.12 = 2,878,139.40/x
  3. Step 3: Cross multiply
    5,055,136.56x = 6,974,385.12 × 2,878,139.40
  4. Step 4: Simplify right side
    5,055,136.56x = 20,073,252,604,645.73
  5. Step 5: Solve for x
    x = 20,073,252,604,645.73/5,055,136.56
  6. Step 6: Final answer
    x = 3,970,862.58

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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.