Home / 20,946,420.50-31,419,315.20-9,423,750.38

Finding the Fourth Proportional to 20,946,420.50, 31,419,315.20 and 9,423,750.38

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Solution

The fourth proportional to 20,946,420.50, 31,419,315.20 and 9,423,750.38 is: 14,135,483.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946,420.50 : 31,419,315.20 = 9,423,750.38 : x
  2. Step 2: Convert to fraction form
    20,946,420.50/31,419,315.20 = 9,423,750.38/x
  3. Step 3: Cross multiply
    20,946,420.50x = 31,419,315.20 × 9,423,750.38
  4. Step 4: Simplify right side
    20,946,420.50x = 296,087,783,555,339.81
  5. Step 5: Solve for x
    x = 296,087,783,555,339.81/20,946,420.50
  6. Step 6: Final answer
    x = 14,135,483.60

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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.