Home / 215,795,817.40-323,693,726.10-79,463,486.20

Finding the Fourth Proportional to 215,795,817.40, 323,693,726.10 and 79,463,486.20

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Solution

The fourth proportional to 215,795,817.40, 323,693,726.10 and 79,463,486.20 is: 119,195,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,795,817.40 : 323,693,726.10 = 79,463,486.20 : x
  2. Step 2: Convert to fraction form
    215,795,817.40/323,693,726.10 = 79,463,486.20/x
  3. Step 3: Cross multiply
    215,795,817.40x = 323,693,726.10 × 79,463,486.20
  4. Step 4: Simplify right side
    215,795,817.40x = 25,721,831,936,973,932
  5. Step 5: Solve for x
    x = 25,721,831,936,973,932/215,795,817.40
  6. Step 6: Final answer
    x = 119,195,229.30

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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.