Home / 13,660,986.40-20,515,099.20-7,283,694.40

Finding the Fourth Proportional to 13,660,986.40, 20,515,099.20 and 7,283,694.40

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Solution

The fourth proportional to 13,660,986.40, 20,515,099.20 and 7,283,694.40 is: 10,938,134.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660,986.40 : 20,515,099.20 = 7,283,694.40 : x
  2. Step 2: Convert to fraction form
    13,660,986.40/20,515,099.20 = 7,283,694.40/x
  3. Step 3: Cross multiply
    13,660,986.40x = 20,515,099.20 × 7,283,694.40
  4. Step 4: Simplify right side
    13,660,986.40x = 149,425,713,158,484.47
  5. Step 5: Solve for x
    x = 149,425,713,158,484.47/13,660,986.40
  6. Step 6: Final answer
    x = 10,938,134.98

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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.