Home / 409,115,760.64-612,975,068.16-225,037,219.84

Finding the Fourth Proportional to 409,115,760.64, 612,975,068.16 and 225,037,219.84

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Solution

The fourth proportional to 409,115,760.64, 612,975,068.16 and 225,037,219.84 is: 337,171,574.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,115,760.64 : 612,975,068.16 = 225,037,219.84 : x
  2. Step 2: Convert to fraction form
    409,115,760.64/612,975,068.16 = 225,037,219.84/x
  3. Step 3: Cross multiply
    409,115,760.64x = 612,975,068.16 × 225,037,219.84
  4. Step 4: Simplify right side
    409,115,760.64x = 137,942,205,169,960,896
  5. Step 5: Solve for x
    x = 137,942,205,169,960,896/409,115,760.64
  6. Step 6: Final answer
    x = 337,171,574.51

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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.