Home / 40,129,996.59-55,379,678.72-21,795,282.09

Finding the Fourth Proportional to 40,129,996.59, 55,379,678.72 and 21,795,282.09

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Solution

The fourth proportional to 40,129,996.59, 55,379,678.72 and 21,795,282.09 is: 30,077,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129,996.59 : 55,379,678.72 = 21,795,282.09 : x
  2. Step 2: Convert to fraction form
    40,129,996.59/55,379,678.72 = 21,795,282.09/x
  3. Step 3: Cross multiply
    40,129,996.59x = 55,379,678.72 × 21,795,282.09
  4. Step 4: Simplify right side
    40,129,996.59x = 1,207,015,719,755,970
  5. Step 5: Solve for x
    x = 1,207,015,719,755,970/40,129,996.59
  6. Step 6: Final answer
    x = 30,077,643.22

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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.