Home / 2,156,822.40-3,235,233.60-2,128,828.80

Finding the Fourth Proportional to 2,156,822.40, 3,235,233.60 and 2,128,828.80

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Solution

The fourth proportional to 2,156,822.40, 3,235,233.60 and 2,128,828.80 is: 3,193,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,822.40 : 3,235,233.60 = 2,128,828.80 : x
  2. Step 2: Convert to fraction form
    2,156,822.40/3,235,233.60 = 2,128,828.80/x
  3. Step 3: Cross multiply
    2,156,822.40x = 3,235,233.60 × 2,128,828.80
  4. Step 4: Simplify right side
    2,156,822.40x = 6,887,258,462,407.68
  5. Step 5: Solve for x
    x = 6,887,258,462,407.68/2,156,822.40
  6. Step 6: Final answer
    x = 3,193,243.20

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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.