Home / 10,555,901.20-15,815,189.40-9,361,507.60

Finding the Fourth Proportional to 10,555,901.20, 15,815,189.40 and 9,361,507.60

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Solution

The fourth proportional to 10,555,901.20, 15,815,189.40 and 9,361,507.60 is: 14,025,710.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555,901.20 : 15,815,189.40 = 9,361,507.60 : x
  2. Step 2: Convert to fraction form
    10,555,901.20/15,815,189.40 = 9,361,507.60/x
  3. Step 3: Cross multiply
    10,555,901.20x = 15,815,189.40 × 9,361,507.60
  4. Step 4: Simplify right side
    10,555,901.20x = 148,054,015,763,539.44
  5. Step 5: Solve for x
    x = 148,054,015,763,539.44/10,555,901.20
  6. Step 6: Final answer
    x = 14,025,710.64

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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.