Home / 13,135,312.80-19,660,978.80-9,356,176.80

Finding the Fourth Proportional to 13,135,312.80, 19,660,978.80 and 9,356,176.80

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Solution

The fourth proportional to 13,135,312.80, 19,660,978.80 and 9,356,176.80 is: 14,004,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135,312.80 : 19,660,978.80 = 9,356,176.80 : x
  2. Step 2: Convert to fraction form
    13,135,312.80/19,660,978.80 = 9,356,176.80/x
  3. Step 3: Cross multiply
    13,135,312.80x = 19,660,978.80 × 9,356,176.80
  4. Step 4: Simplify right side
    13,135,312.80x = 183,951,593,713,851.88
  5. Step 5: Solve for x
    x = 183,951,593,713,851.88/13,135,312.80
  6. Step 6: Final answer
    x = 14,004,355.78

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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.