Home / 21,235,204,808.19-31,857,003,310.05-7,789,613,537.31

Finding the Fourth Proportional to 21,235,204,808.19, 31,857,003,310.05 and 7,789,613,537.31

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Solution

The fourth proportional to 21,235,204,808.19, 31,857,003,310.05 and 7,789,613,537.31 is: 11,685,959,541.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235,204,808.19 : 31,857,003,310.05 = 7,789,613,537.31 : x
  2. Step 2: Convert to fraction form
    21,235,204,808.19/31,857,003,310.05 = 7,789,613,537.31/x
  3. Step 3: Cross multiply
    21,235,204,808.19x = 31,857,003,310.05 × 7,789,613,537.31
  4. Step 4: Simplify right side
    21,235,204,808.19x = 248,153,744,242,015,305,728
  5. Step 5: Solve for x
    x = 248,153,744,242,015,305,728/21,235,204,808.19
  6. Step 6: Final answer
    x = 11,685,959,541.41

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1.5x scale

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.