Home / 311,876,448.74-430,392,900.49-172,649,535.56

Finding the Fourth Proportional to 311,876,448.74, 430,392,900.49 and 172,649,535.56

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Solution

The fourth proportional to 311,876,448.74, 430,392,900.49 and 172,649,535.56 is: 238,258,241.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,876,448.74 : 430,392,900.49 = 172,649,535.56 : x
  2. Step 2: Convert to fraction form
    311,876,448.74/430,392,900.49 = 172,649,535.56/x
  3. Step 3: Cross multiply
    311,876,448.74x = 430,392,900.49 × 172,649,535.56
  4. Step 4: Simplify right side
    311,876,448.74x = 74,307,134,376,950,192
  5. Step 5: Solve for x
    x = 74,307,134,376,950,192/311,876,448.74
  6. Step 6: Final answer
    x = 238,258,241.93

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