Home / 21,321,855.60-31,975,626.24-6,941,543.28

Finding the Fourth Proportional to 21,321,855.60, 31,975,626.24 and 6,941,543.28

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Solution

The fourth proportional to 21,321,855.60, 31,975,626.24 and 6,941,543.28 is: 10,409,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,321,855.60 : 31,975,626.24 = 6,941,543.28 : x
  2. Step 2: Convert to fraction form
    21,321,855.60/31,975,626.24 = 6,941,543.28/x
  3. Step 3: Cross multiply
    21,321,855.60x = 31,975,626.24 × 6,941,543.28
  4. Step 4: Simplify right side
    21,321,855.60x = 221,960,193,450,063.66
  5. Step 5: Solve for x
    x = 221,960,193,450,063.66/21,321,855.60
  6. Step 6: Final answer
    x = 10,409,984.84

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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.