Home / 7,129,390.40-10,695,640.80-2,080,289.60

Finding the Fourth Proportional to 7,129,390.40, 10,695,640.80 and 2,080,289.60

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Solution

The fourth proportional to 7,129,390.40, 10,695,640.80 and 2,080,289.60 is: 3,120,888.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,390.40 : 10,695,640.80 = 2,080,289.60 : x
  2. Step 2: Convert to fraction form
    7,129,390.40/10,695,640.80 = 2,080,289.60/x
  3. Step 3: Cross multiply
    7,129,390.40x = 10,695,640.80 × 2,080,289.60
  4. Step 4: Simplify right side
    7,129,390.40x = 22,250,030,321,575.68
  5. Step 5: Solve for x
    x = 22,250,030,321,575.68/7,129,390.40
  6. Step 6: Final answer
    x = 3,120,888.19

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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.