Home / 2,159,712.40-3,239,568.60-2,128,219.60

Finding the Fourth Proportional to 2,159,712.40, 3,239,568.60 and 2,128,219.60

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Solution

The fourth proportional to 2,159,712.40, 3,239,568.60 and 2,128,219.60 is: 3,192,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159,712.40 : 3,239,568.60 = 2,128,219.60 : x
  2. Step 2: Convert to fraction form
    2,159,712.40/3,239,568.60 = 2,128,219.60/x
  3. Step 3: Cross multiply
    2,159,712.40x = 3,239,568.60 × 2,128,219.60
  4. Step 4: Simplify right side
    2,159,712.40x = 6,894,513,390,064.56
  5. Step 5: Solve for x
    x = 6,894,513,390,064.56/2,159,712.40
  6. Step 6: Final answer
    x = 3,192,329.40

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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.