Home / 215,838,144.10-323,686,357.35-79,505,812.90

Finding the Fourth Proportional to 215,838,144.10, 323,686,357.35 and 79,505,812.90

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Solution

The fourth proportional to 215,838,144.10, 323,686,357.35 and 79,505,812.90 is: 119,232,617.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,838,144.10 : 323,686,357.35 = 79,505,812.90 : x
  2. Step 2: Convert to fraction form
    215,838,144.10/323,686,357.35 = 79,505,812.90/x
  3. Step 3: Cross multiply
    215,838,144.10x = 323,686,357.35 × 79,505,812.90
  4. Step 4: Simplify right side
    215,838,144.10x = 25,734,946,965,751,644
  5. Step 5: Solve for x
    x = 25,734,946,965,751,644/215,838,144.10
  6. Step 6: Final answer
    x = 119,232,617.91

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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.