Home / 10,109,742.60-15,133,121.10-7,275,390.60

Finding the Fourth Proportional to 10,109,742.60, 15,133,121.10 and 7,275,390.60

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Solution

The fourth proportional to 10,109,742.60, 15,133,121.10 and 7,275,390.60 is: 10,890,422.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,742.60 : 15,133,121.10 = 7,275,390.60 : x
  2. Step 2: Convert to fraction form
    10,109,742.60/15,133,121.10 = 7,275,390.60/x
  3. Step 3: Cross multiply
    10,109,742.60x = 15,133,121.10 × 7,275,390.60
  4. Step 4: Simplify right side
    10,109,742.60x = 110,099,366,999,601.66
  5. Step 5: Solve for x
    x = 110,099,366,999,601.66/10,109,742.60
  6. Step 6: Final answer
    x = 10,890,422.37

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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.