Home / 20,728,022.48-31,096,018.92-7,947,530.49

Finding the Fourth Proportional to 20,728,022.48, 31,096,018.92 and 7,947,530.49

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Solution

The fourth proportional to 20,728,022.48, 31,096,018.92 and 7,947,530.49 is: 11,922,823.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728,022.48 : 31,096,018.92 = 7,947,530.49 : x
  2. Step 2: Convert to fraction form
    20,728,022.48/31,096,018.92 = 7,947,530.49/x
  3. Step 3: Cross multiply
    20,728,022.48x = 31,096,018.92 × 7,947,530.49
  4. Step 4: Simplify right side
    20,728,022.48x = 247,136,558,484,316.91
  5. Step 5: Solve for x
    x = 247,136,558,484,316.91/20,728,022.48
  6. Step 6: Final answer
    x = 11,922,823.74

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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.