Home / 72,292,705.35-99,761,135.28-39,252,198.26

Finding the Fourth Proportional to 72,292,705.35, 99,761,135.28 and 39,252,198.26

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Solution

The fourth proportional to 72,292,705.35, 99,761,135.28 and 39,252,198.26 is: 54,166,514.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,292,705.35 : 99,761,135.28 = 39,252,198.26 : x
  2. Step 2: Convert to fraction form
    72,292,705.35/99,761,135.28 = 39,252,198.26/x
  3. Step 3: Cross multiply
    72,292,705.35x = 99,761,135.28 × 39,252,198.26
  4. Step 4: Simplify right side
    72,292,705.35x = 3,915,843,860,154,435.50
  5. Step 5: Solve for x
    x = 3,915,843,860,154,435.50/72,292,705.35
  6. Step 6: Final answer
    x = 54,166,514.33

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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.