Home / 13,789,915.80-20,635,884.90-12,012,322.20

Finding the Fourth Proportional to 13,789,915.80, 20,635,884.90 and 12,012,322.20

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Solution

The fourth proportional to 13,789,915.80, 20,635,884.90 and 12,012,322.20 is: 17,975,809.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789,915.80 : 20,635,884.90 = 12,012,322.20 : x
  2. Step 2: Convert to fraction form
    13,789,915.80/20,635,884.90 = 12,012,322.20/x
  3. Step 3: Cross multiply
    13,789,915.80x = 20,635,884.90 × 12,012,322.20
  4. Step 4: Simplify right side
    13,789,915.80x = 247,884,898,300,914.75
  5. Step 5: Solve for x
    x = 247,884,898,300,914.75/13,789,915.80
  6. Step 6: Final answer
    x = 17,975,809.42

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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.