Home / 289,491,283.36-399,501,056.31-157,332,286.71

Finding the Fourth Proportional to 289,491,283.36, 399,501,056.31 and 157,332,286.71

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Solution

The fourth proportional to 289,491,283.36, 399,501,056.31 and 157,332,286.71 is: 217,120,232.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,491,283.36 : 399,501,056.31 = 157,332,286.71 : x
  2. Step 2: Convert to fraction form
    289,491,283.36/399,501,056.31 = 157,332,286.71/x
  3. Step 3: Cross multiply
    289,491,283.36x = 399,501,056.31 × 157,332,286.71
  4. Step 4: Simplify right side
    289,491,283.36x = 62,854,414,731,721,216
  5. Step 5: Solve for x
    x = 62,854,414,731,721,216/289,491,283.36
  6. Step 6: Final answer
    x = 217,120,232.44

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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.