Home / 53,910,668.66-80,902,388.67-21,117,169.89

Finding the Fourth Proportional to 53,910,668.66, 80,902,388.67 and 21,117,169.89

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Solution

The fourth proportional to 53,910,668.66, 80,902,388.67 and 21,117,169.89 is: 31,690,007.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,910,668.66 : 80,902,388.67 = 21,117,169.89 : x
  2. Step 2: Convert to fraction form
    53,910,668.66/80,902,388.67 = 21,117,169.89/x
  3. Step 3: Cross multiply
    53,910,668.66x = 80,902,388.67 × 21,117,169.89
  4. Step 4: Simplify right side
    53,910,668.66x = 1,708,429,485,748,901
  5. Step 5: Solve for x
    x = 1,708,429,485,748,901/53,910,668.66
  6. Step 6: Final answer
    x = 31,690,007.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.