Home / 20,605,897.76-28,439,768.40-11,904,398.24

Finding the Fourth Proportional to 20,605,897.76, 28,439,768.40 and 11,904,398.24

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Solution

The fourth proportional to 20,605,897.76, 28,439,768.40 and 11,904,398.24 is: 16,430,166.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,605,897.76 : 28,439,768.40 = 11,904,398.24 : x
  2. Step 2: Convert to fraction form
    20,605,897.76/28,439,768.40 = 11,904,398.24/x
  3. Step 3: Cross multiply
    20,605,897.76x = 28,439,768.40 × 11,904,398.24
  4. Step 4: Simplify right side
    20,605,897.76x = 338,558,328,886,967.62
  5. Step 5: Solve for x
    x = 338,558,328,886,967.62/20,605,897.76
  6. Step 6: Final answer
    x = 16,430,166.39

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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.