Home / 341,665,489.20-512,448,467.40-99,303,121.20

Finding the Fourth Proportional to 341,665,489.20, 512,448,467.40 and 99,303,121.20

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Solution

The fourth proportional to 341,665,489.20, 512,448,467.40 and 99,303,121.20 is: 148,940,217.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,665,489.20 : 512,448,467.40 = 99,303,121.20 : x
  2. Step 2: Convert to fraction form
    341,665,489.20/512,448,467.40 = 99,303,121.20/x
  3. Step 3: Cross multiply
    341,665,489.20x = 512,448,467.40 × 99,303,121.20
  4. Step 4: Simplify right side
    341,665,489.20x = 50,887,732,266,976,448
  5. Step 5: Solve for x
    x = 50,887,732,266,976,448/341,665,489.20
  6. Step 6: Final answer
    x = 148,940,217.48

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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.