Home / 199,479,371.40-299,219,057.10-172,216,448.10

Finding the Fourth Proportional to 199,479,371.40, 299,219,057.10 and 172,216,448.10

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Solution

The fourth proportional to 199,479,371.40, 299,219,057.10 and 172,216,448.10 is: 258,324,672.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,479,371.40 : 299,219,057.10 = 172,216,448.10 : x
  2. Step 2: Convert to fraction form
    199,479,371.40/299,219,057.10 = 172,216,448.10/x
  3. Step 3: Cross multiply
    199,479,371.40x = 299,219,057.10 × 172,216,448.10
  4. Step 4: Simplify right side
    199,479,371.40x = 51,530,443,217,593,088
  5. Step 5: Solve for x
    x = 51,530,443,217,593,088/199,479,371.40
  6. Step 6: Final answer
    x = 258,324,672.15

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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.