Home / 20,824,248.80-28,737,103.10-11,531,634.77

Finding the Fourth Proportional to 20,824,248.80, 28,737,103.10 and 11,531,634.77

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Solution

The fourth proportional to 20,824,248.80, 28,737,103.10 and 11,531,634.77 is: 15,913,456.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,824,248.80 : 28,737,103.10 = 11,531,634.77 : x
  2. Step 2: Convert to fraction form
    20,824,248.80/28,737,103.10 = 11,531,634.77/x
  3. Step 3: Cross multiply
    20,824,248.80x = 28,737,103.10 × 11,531,634.77
  4. Step 4: Simplify right side
    20,824,248.80x = 331,385,777,095,691.12
  5. Step 5: Solve for x
    x = 331,385,777,095,691.12/20,824,248.80
  6. Step 6: Final answer
    x = 15,913,456.49

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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.