Home / 215,208,048.30-322,812,072.45-198,579,849.90

Finding the Fourth Proportional to 215,208,048.30, 322,812,072.45 and 198,579,849.90

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Solution

The fourth proportional to 215,208,048.30, 322,812,072.45 and 198,579,849.90 is: 297,869,774.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,208,048.30 : 322,812,072.45 = 198,579,849.90 : x
  2. Step 2: Convert to fraction form
    215,208,048.30/322,812,072.45 = 198,579,849.90/x
  3. Step 3: Cross multiply
    215,208,048.30x = 322,812,072.45 × 198,579,849.90
  4. Step 4: Simplify right side
    215,208,048.30x = 64,103,972,893,028,928
  5. Step 5: Solve for x
    x = 64,103,972,893,028,928/215,208,048.30
  6. Step 6: Final answer
    x = 297,869,774.85

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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.