Home / 5,112,980.20-7,660,139.10-3,116,103.40

Finding the Fourth Proportional to 5,112,980.20, 7,660,139.10 and 3,116,103.40

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Solution

The fourth proportional to 5,112,980.20, 7,660,139.10 and 3,116,103.40 is: 4,668,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112,980.20 : 7,660,139.10 = 3,116,103.40 : x
  2. Step 2: Convert to fraction form
    5,112,980.20/7,660,139.10 = 3,116,103.40/x
  3. Step 3: Cross multiply
    5,112,980.20x = 7,660,139.10 × 3,116,103.40
  4. Step 4: Simplify right side
    5,112,980.20x = 23,869,785,493,982.94
  5. Step 5: Solve for x
    x = 23,869,785,493,982.94/5,112,980.20
  6. Step 6: Final answer
    x = 4,668,468.20

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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.