Home / 2,160,161.40-3,238,686.90-1,213,822.20

Finding the Fourth Proportional to 2,160,161.40, 3,238,686.90 and 1,213,822.20

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Solution

The fourth proportional to 2,160,161.40, 3,238,686.90 and 1,213,822.20 is: 1,819,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160,161.40 : 3,238,686.90 = 1,213,822.20 : x
  2. Step 2: Convert to fraction form
    2,160,161.40/3,238,686.90 = 1,213,822.20/x
  3. Step 3: Cross multiply
    2,160,161.40x = 3,238,686.90 × 1,213,822.20
  4. Step 4: Simplify right side
    2,160,161.40x = 3,931,190,058,069.18
  5. Step 5: Solve for x
    x = 3,931,190,058,069.18/2,160,161.40
  6. Step 6: Final answer
    x = 1,819,859.41

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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.