Home / 13,187,811.20-19,781,716.80-4,089,891.20

Finding the Fourth Proportional to 13,187,811.20, 19,781,716.80 and 4,089,891.20

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Solution

The fourth proportional to 13,187,811.20, 19,781,716.80 and 4,089,891.20 is: 6,134,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,811.20 : 19,781,716.80 = 4,089,891.20 : x
  2. Step 2: Convert to fraction form
    13,187,811.20/19,781,716.80 = 4,089,891.20/x
  3. Step 3: Cross multiply
    13,187,811.20x = 19,781,716.80 × 4,089,891.20
  4. Step 4: Simplify right side
    13,187,811.20x = 80,905,069,461,212.17
  5. Step 5: Solve for x
    x = 80,905,069,461,212.17/13,187,811.20
  6. Step 6: Final answer
    x = 6,134,836.80

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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.