Home / 10,921,719.20-16,395,020.40-6,436,522.40

Finding the Fourth Proportional to 10,921,719.20, 16,395,020.40 and 6,436,522.40

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Solution

The fourth proportional to 10,921,719.20, 16,395,020.40 and 6,436,522.40 is: 9,662,115.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,719.20 : 16,395,020.40 = 6,436,522.40 : x
  2. Step 2: Convert to fraction form
    10,921,719.20/16,395,020.40 = 6,436,522.40/x
  3. Step 3: Cross multiply
    10,921,719.20x = 16,395,020.40 × 6,436,522.40
  4. Step 4: Simplify right side
    10,921,719.20x = 105,526,916,053,056.97
  5. Step 5: Solve for x
    x = 105,526,916,053,056.97/10,921,719.20
  6. Step 6: Final answer
    x = 9,662,115.84

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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.