Home / 39,247,043.86-54,159,964.70-21,605,802.96

Finding the Fourth Proportional to 39,247,043.86, 54,159,964.70 and 21,605,802.96

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Solution

The fourth proportional to 39,247,043.86, 54,159,964.70 and 21,605,802.96 is: 29,815,481.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,247,043.86 : 54,159,964.70 = 21,605,802.96 : x
  2. Step 2: Convert to fraction form
    39,247,043.86/54,159,964.70 = 21,605,802.96/x
  3. Step 3: Cross multiply
    39,247,043.86x = 54,159,964.70 × 21,605,802.96
  4. Step 4: Simplify right side
    39,247,043.86x = 1,170,169,525,628,755.50
  5. Step 5: Solve for x
    x = 1,170,169,525,628,755.50/39,247,043.86
  6. Step 6: Final answer
    x = 29,815,481.89

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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.