Home / 20,206,554.42-30,328,993.92-12,506,908.56

Finding the Fourth Proportional to 20,206,554.42, 30,328,993.92 and 12,506,908.56

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Solution

The fourth proportional to 20,206,554.42, 30,328,993.92 and 12,506,908.56 is: 18,772,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206,554.42 : 30,328,993.92 = 12,506,908.56 : x
  2. Step 2: Convert to fraction form
    20,206,554.42/30,328,993.92 = 12,506,908.56/x
  3. Step 3: Cross multiply
    20,206,554.42x = 30,328,993.92 × 12,506,908.56
  4. Step 4: Simplify right side
    20,206,554.42x = 379,321,953,674,236
  5. Step 5: Solve for x
    x = 379,321,953,674,236/20,206,554.42
  6. Step 6: Final answer
    x = 18,772,223.40

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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.