Home / 356,011,128.44-491,172,406.03-223,862,181.15

Finding the Fourth Proportional to 356,011,128.44, 491,172,406.03 and 223,862,181.15

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Solution

The fourth proportional to 356,011,128.44, 491,172,406.03 and 223,862,181.15 is: 308,852,497.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,011,128.44 : 491,172,406.03 = 223,862,181.15 : x
  2. Step 2: Convert to fraction form
    356,011,128.44/491,172,406.03 = 223,862,181.15/x
  3. Step 3: Cross multiply
    356,011,128.44x = 491,172,406.03 × 223,862,181.15
  4. Step 4: Simplify right side
    356,011,128.44x = 109,954,926,134,569,216
  5. Step 5: Solve for x
    x = 109,954,926,134,569,216/356,011,128.44
  6. Step 6: Final answer
    x = 308,852,497.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.