Home / 6,921,405.20-10,382,885.40-2,129,056.40

Finding the Fourth Proportional to 6,921,405.20, 10,382,885.40 and 2,129,056.40

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Solution

The fourth proportional to 6,921,405.20, 10,382,885.40 and 2,129,056.40 is: 3,193,823.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921,405.20 : 10,382,885.40 = 2,129,056.40 : x
  2. Step 2: Convert to fraction form
    6,921,405.20/10,382,885.40 = 2,129,056.40/x
  3. Step 3: Cross multiply
    6,921,405.20x = 10,382,885.40 × 2,129,056.40
  4. Step 4: Simplify right side
    6,921,405.20x = 22,105,748,611,336.56
  5. Step 5: Solve for x
    x = 22,105,748,611,336.56/6,921,405.20
  6. Step 6: Final answer
    x = 3,193,823.79

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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.