Home / 20,401,941.35-30,602,912.03-15,778,404.65

Finding the Fourth Proportional to 20,401,941.35, 30,602,912.03 and 15,778,404.65

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Solution

The fourth proportional to 20,401,941.35, 30,602,912.03 and 15,778,404.65 is: 23,667,606.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401,941.35 : 30,602,912.03 = 15,778,404.65 : x
  2. Step 2: Convert to fraction form
    20,401,941.35/30,602,912.03 = 15,778,404.65/x
  3. Step 3: Cross multiply
    20,401,941.35x = 30,602,912.03 × 15,778,404.65
  4. Step 4: Simplify right side
    20,401,941.35x = 482,865,129,398,800.88
  5. Step 5: Solve for x
    x = 482,865,129,398,800.88/20,401,941.35
  6. Step 6: Final answer
    x = 23,667,606.98

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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.