Home / 39,283,203,832.78-54,210,843,036.26-21,218,719,951.66

Finding the Fourth Proportional to 39,283,203,832.78, 54,210,843,036.26 and 21,218,719,951.66

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Solution

The fourth proportional to 39,283,203,832.78, 54,210,843,036.26 and 21,218,719,951.66 is: 29,281,845,279.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,283,203,832.78 : 54,210,843,036.26 = 21,218,719,951.66 : x
  2. Step 2: Convert to fraction form
    39,283,203,832.78/54,210,843,036.26 = 21,218,719,951.66/x
  3. Step 3: Cross multiply
    39,283,203,832.78x = 54,210,843,036.26 × 21,218,719,951.66
  4. Step 4: Simplify right side
    39,283,203,832.78x = 1,150,284,696,729,798,705,152
  5. Step 5: Solve for x
    x = 1,150,284,696,729,798,705,152/39,283,203,832.78
  6. Step 6: Final answer
    x = 29,281,845,279.89

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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.