Home / 304,737,871.51-420,524,187.63-172,579,813.75

Finding the Fourth Proportional to 304,737,871.51, 420,524,187.63 and 172,579,813.75

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Solution

The fourth proportional to 304,737,871.51, 420,524,187.63 and 172,579,813.75 is: 238,152,171.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,737,871.51 : 420,524,187.63 = 172,579,813.75 : x
  2. Step 2: Convert to fraction form
    304,737,871.51/420,524,187.63 = 172,579,813.75/x
  3. Step 3: Cross multiply
    304,737,871.51x = 420,524,187.63 × 172,579,813.75
  4. Step 4: Simplify right side
    304,737,871.51x = 72,573,985,978,555,456
  5. Step 5: Solve for x
    x = 72,573,985,978,555,456/304,737,871.51
  6. Step 6: Final answer
    x = 238,152,171.96

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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.