Home / 39,283,203,866.32-54,210,843,082.56-21,218,719,985.20

Finding the Fourth Proportional to 39,283,203,866.32, 54,210,843,082.56 and 21,218,719,985.20

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Solution

The fourth proportional to 39,283,203,866.32, 54,210,843,082.56 and 21,218,719,985.20 is: 29,281,845,326.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,283,203,866.32 : 54,210,843,082.56 = 21,218,719,985.20 : x
  2. Step 2: Convert to fraction form
    39,283,203,866.32/54,210,843,082.56 = 21,218,719,985.20/x
  3. Step 3: Cross multiply
    39,283,203,866.32x = 54,210,843,082.56 × 21,218,719,985.20
  4. Step 4: Simplify right side
    39,283,203,866.32x = 1,150,284,699,530,456,989,696
  5. Step 5: Solve for x
    x = 1,150,284,699,530,456,989,696/39,283,203,866.32
  6. Step 6: Final answer
    x = 29,281,845,326.18

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Double scale
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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.