Home / 215,540,983.20-323,311,474.80-106,418,431.20

Finding the Fourth Proportional to 215,540,983.20, 323,311,474.80 and 106,418,431.20

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Solution

The fourth proportional to 215,540,983.20, 323,311,474.80 and 106,418,431.20 is: 159,627,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,540,983.20 : 323,311,474.80 = 106,418,431.20 : x
  2. Step 2: Convert to fraction form
    215,540,983.20/323,311,474.80 = 106,418,431.20/x
  3. Step 3: Cross multiply
    215,540,983.20x = 323,311,474.80 × 106,418,431.20
  4. Step 4: Simplify right side
    215,540,983.20x = 34,406,299,937,174,336
  5. Step 5: Solve for x
    x = 34,406,299,937,174,336/215,540,983.20
  6. Step 6: Final answer
    x = 159,627,646.80

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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.