Home / 13,972,511.90-20,916,777.45-8,289,811.10

Finding the Fourth Proportional to 13,972,511.90, 20,916,777.45 and 8,289,811.10

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Solution

The fourth proportional to 13,972,511.90, 20,916,777.45 and 8,289,811.10 is: 12,409,803.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972,511.90 : 20,916,777.45 = 8,289,811.10 : x
  2. Step 2: Convert to fraction form
    13,972,511.90/20,916,777.45 = 8,289,811.10/x
  3. Step 3: Cross multiply
    13,972,511.90x = 20,916,777.45 × 8,289,811.10
  4. Step 4: Simplify right side
    13,972,511.90x = 173,396,133,881,239.69
  5. Step 5: Solve for x
    x = 173,396,133,881,239.69/13,972,511.90
  6. Step 6: Final answer
    x = 12,409,803.99

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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.