Home / 290,332,777.06-400,390,104.81-211,892,083.30

Finding the Fourth Proportional to 290,332,777.06, 400,390,104.81 and 211,892,083.30

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Solution

The fourth proportional to 290,332,777.06, 400,390,104.81 and 211,892,083.30 is: 292,214,658.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,332,777.06 : 400,390,104.81 = 211,892,083.30 : x
  2. Step 2: Convert to fraction form
    290,332,777.06/400,390,104.81 = 211,892,083.30/x
  3. Step 3: Cross multiply
    290,332,777.06x = 400,390,104.81 × 211,892,083.30
  4. Step 4: Simplify right side
    290,332,777.06x = 84,839,493,440,896,256
  5. Step 5: Solve for x
    x = 84,839,493,440,896,256/290,332,777.06
  6. Step 6: Final answer
    x = 292,214,658.99

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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.