Home / 13,972,561.90-20,916,852.45-8,289,861.10

Finding the Fourth Proportional to 13,972,561.90, 20,916,852.45 and 8,289,861.10

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Solution

The fourth proportional to 13,972,561.90, 20,916,852.45 and 8,289,861.10 is: 12,409,878.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972,561.90 : 20,916,852.45 = 8,289,861.10 : x
  2. Step 2: Convert to fraction form
    13,972,561.90/20,916,852.45 = 8,289,861.10/x
  3. Step 3: Cross multiply
    13,972,561.90x = 20,916,852.45 × 8,289,861.10
  4. Step 4: Simplify right side
    13,972,561.90x = 173,397,801,459,694.69
  5. Step 5: Solve for x
    x = 173,397,801,459,694.69/13,972,561.90
  6. Step 6: Final answer
    x = 12,409,878.93

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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.