Home / 10,555,907.20-15,815,198.40-9,361,513.60

Finding the Fourth Proportional to 10,555,907.20, 15,815,198.40 and 9,361,513.60

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Solution

The fourth proportional to 10,555,907.20, 15,815,198.40 and 9,361,513.60 is: 14,025,719.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555,907.20 : 15,815,198.40 = 9,361,513.60 : x
  2. Step 2: Convert to fraction form
    10,555,907.20/15,815,198.40 = 9,361,513.60/x
  3. Step 3: Cross multiply
    10,555,907.20x = 15,815,198.40 × 9,361,513.60
  4. Step 4: Simplify right side
    10,555,907.20x = 148,054,194,908,298.25
  5. Step 5: Solve for x
    x = 148,054,194,908,298.25/10,555,907.20
  6. Step 6: Final answer
    x = 14,025,719.64

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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.