Home / 2,128,077.70-3,192,116.55-1,330,260.10

Finding the Fourth Proportional to 2,128,077.70, 3,192,116.55 and 1,330,260.10

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Solution

The fourth proportional to 2,128,077.70, 3,192,116.55 and 1,330,260.10 is: 1,995,390.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,077.70 : 3,192,116.55 = 1,330,260.10 : x
  2. Step 2: Convert to fraction form
    2,128,077.70/3,192,116.55 = 1,330,260.10/x
  3. Step 3: Cross multiply
    2,128,077.70x = 3,192,116.55 × 1,330,260.10
  4. Step 4: Simplify right side
    2,128,077.70x = 4,246,345,281,014.66
  5. Step 5: Solve for x
    x = 4,246,345,281,014.66/2,128,077.70
  6. Step 6: Final answer
    x = 1,995,390.15

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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.