Home / 5,179,416.80-7,769,125.20-2,939,928.80

Finding the Fourth Proportional to 5,179,416.80, 7,769,125.20 and 2,939,928.80

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Solution

The fourth proportional to 5,179,416.80, 7,769,125.20 and 2,939,928.80 is: 4,409,893.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179,416.80 : 7,769,125.20 = 2,939,928.80 : x
  2. Step 2: Convert to fraction form
    5,179,416.80/7,769,125.20 = 2,939,928.80/x
  3. Step 3: Cross multiply
    5,179,416.80x = 7,769,125.20 × 2,939,928.80
  4. Step 4: Simplify right side
    5,179,416.80x = 22,840,674,926,285.76
  5. Step 5: Solve for x
    x = 22,840,674,926,285.76/5,179,416.80
  6. Step 6: Final answer
    x = 4,409,893.20

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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.