Home / 10,109,905.20-15,164,857.80-2,921,673.60

Finding the Fourth Proportional to 10,109,905.20, 15,164,857.80 and 2,921,673.60

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Solution

The fourth proportional to 10,109,905.20, 15,164,857.80 and 2,921,673.60 is: 4,382,510.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,905.20 : 15,164,857.80 = 2,921,673.60 : x
  2. Step 2: Convert to fraction form
    10,109,905.20/15,164,857.80 = 2,921,673.60/x
  3. Step 3: Cross multiply
    10,109,905.20x = 15,164,857.80 × 2,921,673.60
  4. Step 4: Simplify right side
    10,109,905.20x = 44,306,764,682,014.09
  5. Step 5: Solve for x
    x = 44,306,764,682,014.09/10,109,905.20
  6. Step 6: Final answer
    x = 4,382,510.40

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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.