Home / 2,154,135.80-3,231,203.70-2,021,275.55

Finding the Fourth Proportional to 2,154,135.80, 3,231,203.70 and 2,021,275.55

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Solution

The fourth proportional to 2,154,135.80, 3,231,203.70 and 2,021,275.55 is: 3,031,913.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,135.80 : 3,231,203.70 = 2,021,275.55 : x
  2. Step 2: Convert to fraction form
    2,154,135.80/3,231,203.70 = 2,021,275.55/x
  3. Step 3: Cross multiply
    2,154,135.80x = 3,231,203.70 × 2,021,275.55
  4. Step 4: Simplify right side
    2,154,135.80x = 6,531,153,035,879.54
  5. Step 5: Solve for x
    x = 6,531,153,035,879.54/2,154,135.80
  6. Step 6: Final answer
    x = 3,031,913.33

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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.