Home / 13,629,988.89-18,811,420.43-8,740,731.69

Finding the Fourth Proportional to 13,629,988.89, 18,811,420.43 and 8,740,731.69

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Solution

The fourth proportional to 13,629,988.89, 18,811,420.43 and 8,740,731.69 is: 12,063,515.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629,988.89 : 18,811,420.43 = 8,740,731.69 : x
  2. Step 2: Convert to fraction form
    13,629,988.89/18,811,420.43 = 8,740,731.69/x
  3. Step 3: Cross multiply
    13,629,988.89x = 18,811,420.43 × 8,740,731.69
  4. Step 4: Simplify right side
    13,629,988.89x = 164,425,578,642,710.75
  5. Step 5: Solve for x
    x = 164,425,578,642,710.75/13,629,988.89
  6. Step 6: Final answer
    x = 12,063,515.24

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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.