Home / 2,129,612.40-3,191,186.40-1,561,371.84

Finding the Fourth Proportional to 2,129,612.40, 3,191,186.40 and 1,561,371.84

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Solution

The fourth proportional to 2,129,612.40, 3,191,186.40 and 1,561,371.84 is: 2,339,688.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,612.40 : 3,191,186.40 = 1,561,371.84 : x
  2. Step 2: Convert to fraction form
    2,129,612.40/3,191,186.40 = 1,561,371.84/x
  3. Step 3: Cross multiply
    2,129,612.40x = 3,191,186.40 × 1,561,371.84
  4. Step 4: Simplify right side
    2,129,612.40x = 4,982,628,581,150.98
  5. Step 5: Solve for x
    x = 4,982,628,581,150.98/2,129,612.40
  6. Step 6: Final answer
    x = 2,339,688.00

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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.