Home / 304,737,859.48-420,524,171.10-172,579,801.72

Finding the Fourth Proportional to 304,737,859.48, 420,524,171.10 and 172,579,801.72

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Solution

The fourth proportional to 304,737,859.48, 420,524,171.10 and 172,579,801.72 is: 238,152,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,737,859.48 : 420,524,171.10 = 172,579,801.72 : x
  2. Step 2: Convert to fraction form
    304,737,859.48/420,524,171.10 = 172,579,801.72/x
  3. Step 3: Cross multiply
    304,737,859.48x = 420,524,171.10 × 172,579,801.72
  4. Step 4: Simplify right side
    304,737,859.48x = 72,573,978,066,905,360
  5. Step 5: Solve for x
    x = 72,573,978,066,905,360/304,737,859.48
  6. Step 6: Final answer
    x = 238,152,155.40

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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.