Home / 20,241,912.90-30,362,869.35-18,289,359.30

Finding the Fourth Proportional to 20,241,912.90, 30,362,869.35 and 18,289,359.30

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Solution

The fourth proportional to 20,241,912.90, 30,362,869.35 and 18,289,359.30 is: 27,434,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241,912.90 : 30,362,869.35 = 18,289,359.30 : x
  2. Step 2: Convert to fraction form
    20,241,912.90/30,362,869.35 = 18,289,359.30/x
  3. Step 3: Cross multiply
    20,241,912.90x = 30,362,869.35 × 18,289,359.30
  4. Step 4: Simplify right side
    20,241,912.90x = 555,317,426,921,107.50
  5. Step 5: Solve for x
    x = 555,317,426,921,107.50/20,241,912.90
  6. Step 6: Final answer
    x = 27,434,038.95

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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.