Home / 10,628,721.60-15,945,415.20-5,239,953.60

Finding the Fourth Proportional to 10,628,721.60, 15,945,415.20 and 5,239,953.60

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Solution

The fourth proportional to 10,628,721.60, 15,945,415.20 and 5,239,953.60 is: 7,861,080.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628,721.60 : 15,945,415.20 = 5,239,953.60 : x
  2. Step 2: Convert to fraction form
    10,628,721.60/15,945,415.20 = 5,239,953.60/x
  3. Step 3: Cross multiply
    10,628,721.60x = 15,945,415.20 × 5,239,953.60
  4. Step 4: Simplify right side
    10,628,721.60x = 83,553,235,780,734.70
  5. Step 5: Solve for x
    x = 83,553,235,780,734.70/10,628,721.60
  6. Step 6: Final answer
    x = 7,861,080.47

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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.