Home / 13,080,907.20-19,621,360.80-12,528,033.60

Finding the Fourth Proportional to 13,080,907.20, 19,621,360.80 and 12,528,033.60

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Solution

The fourth proportional to 13,080,907.20, 19,621,360.80 and 12,528,033.60 is: 18,792,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080,907.20 : 19,621,360.80 = 12,528,033.60 : x
  2. Step 2: Convert to fraction form
    13,080,907.20/19,621,360.80 = 12,528,033.60/x
  3. Step 3: Cross multiply
    13,080,907.20x = 19,621,360.80 × 12,528,033.60
  4. Step 4: Simplify right side
    13,080,907.20x = 245,817,067,380,122.88
  5. Step 5: Solve for x
    x = 245,817,067,380,122.88/13,080,907.20
  6. Step 6: Final answer
    x = 18,792,050.40

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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.