Home / 2,187,019.60-3,018,088.92-1,220,150.04

Finding the Fourth Proportional to 2,187,019.60, 3,018,088.92 and 1,220,150.04

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Solution

The fourth proportional to 2,187,019.60, 3,018,088.92 and 1,220,150.04 is: 1,683,808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,019.60 : 3,018,088.92 = 1,220,150.04 : x
  2. Step 2: Convert to fraction form
    2,187,019.60/3,018,088.92 = 1,220,150.04/x
  3. Step 3: Cross multiply
    2,187,019.60x = 3,018,088.92 × 1,220,150.04
  4. Step 4: Simplify right side
    2,187,019.60x = 3,682,521,309,719.29
  5. Step 5: Solve for x
    x = 3,682,521,309,719.29/2,187,019.60
  6. Step 6: Final answer
    x = 1,683,808.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.