Home / 12,409,811.20-18,614,716.80-9,050,579.20

Finding the Fourth Proportional to 12,409,811.20, 18,614,716.80 and 9,050,579.20

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Solution

The fourth proportional to 12,409,811.20, 18,614,716.80 and 9,050,579.20 is: 13,575,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409,811.20 : 18,614,716.80 = 9,050,579.20 : x
  2. Step 2: Convert to fraction form
    12,409,811.20/18,614,716.80 = 9,050,579.20/x
  3. Step 3: Cross multiply
    12,409,811.20x = 18,614,716.80 × 9,050,579.20
  4. Step 4: Simplify right side
    12,409,811.20x = 168,473,968,683,970.56
  5. Step 5: Solve for x
    x = 168,473,968,683,970.56/12,409,811.20
  6. Step 6: Final answer
    x = 13,575,868.80

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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.