Home / 20,541,632.40-30,812,448.60-12,017,581.20

Finding the Fourth Proportional to 20,541,632.40, 30,812,448.60 and 12,017,581.20

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Solution

The fourth proportional to 20,541,632.40, 30,812,448.60 and 12,017,581.20 is: 18,026,371.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541,632.40 : 30,812,448.60 = 12,017,581.20 : x
  2. Step 2: Convert to fraction form
    20,541,632.40/30,812,448.60 = 12,017,581.20/x
  3. Step 3: Cross multiply
    20,541,632.40x = 30,812,448.60 × 12,017,581.20
  4. Step 4: Simplify right side
    20,541,632.40x = 370,291,103,021,326.31
  5. Step 5: Solve for x
    x = 370,291,103,021,326.31/20,541,632.40
  6. Step 6: Final answer
    x = 18,026,371.80

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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.