Home / 356,011,129.44-491,172,407.41-223,862,182.15

Finding the Fourth Proportional to 356,011,129.44, 491,172,407.41 and 223,862,182.15

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Solution

The fourth proportional to 356,011,129.44, 491,172,407.41 and 223,862,182.15 is: 308,852,498.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,011,129.44 : 491,172,407.41 = 223,862,182.15 : x
  2. Step 2: Convert to fraction form
    356,011,129.44/491,172,407.41 = 223,862,182.15/x
  3. Step 3: Cross multiply
    356,011,129.44x = 491,172,407.41 × 223,862,182.15
  4. Step 4: Simplify right side
    356,011,129.44x = 109,954,926,934,671,440
  5. Step 5: Solve for x
    x = 109,954,926,934,671,440/356,011,129.44
  6. Step 6: Final answer
    x = 308,852,498.82

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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.