Home / 10,455,529.20-15,674,999.40-5,727,721.20

Finding the Fourth Proportional to 10,455,529.20, 15,674,999.40 and 5,727,721.20

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Solution

The fourth proportional to 10,455,529.20, 15,674,999.40 and 5,727,721.20 is: 8,587,037.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455,529.20 : 15,674,999.40 = 5,727,721.20 : x
  2. Step 2: Convert to fraction form
    10,455,529.20/15,674,999.40 = 5,727,721.20/x
  3. Step 3: Cross multiply
    10,455,529.20x = 15,674,999.40 × 5,727,721.20
  4. Step 4: Simplify right side
    10,455,529.20x = 89,782,026,373,367.28
  5. Step 5: Solve for x
    x = 89,782,026,373,367.28/10,455,529.20
  6. Step 6: Final answer
    x = 8,587,037.98

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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.