Home / 15,690,669.30-21,632,322.11-12,889,269.59

Finding the Fourth Proportional to 15,690,669.30, 21,632,322.11 and 12,889,269.59

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Solution

The fourth proportional to 15,690,669.30, 21,632,322.11 and 12,889,269.59 is: 17,770,104.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690,669.30 : 21,632,322.11 = 12,889,269.59 : x
  2. Step 2: Convert to fraction form
    15,690,669.30/21,632,322.11 = 12,889,269.59/x
  3. Step 3: Cross multiply
    15,690,669.30x = 21,632,322.11 × 12,889,269.59
  4. Step 4: Simplify right side
    15,690,669.30x = 278,824,831,360,899.69
  5. Step 5: Solve for x
    x = 278,824,831,360,899.69/15,690,669.30
  6. Step 6: Final answer
    x = 17,770,104.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.