Home / 21,450,631,801.92-29,601,407,678.40-12,418,770,736.32

Finding the Fourth Proportional to 21,450,631,801.92, 29,601,407,678.40 and 12,418,770,736.32

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Solution

The fourth proportional to 21,450,631,801.92, 29,601,407,678.40 and 12,418,770,736.32 is: 17,137,634,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450,631,801.92 : 29,601,407,678.40 = 12,418,770,736.32 : x
  2. Step 2: Convert to fraction form
    21,450,631,801.92/29,601,407,678.40 = 12,418,770,736.32/x
  3. Step 3: Cross multiply
    21,450,631,801.92x = 29,601,407,678.40 × 12,418,770,736.32
  4. Step 4: Simplify right side
    21,450,631,801.92x = 367,613,095,430,392,053,760
  5. Step 5: Solve for x
    x = 367,613,095,430,392,053,760/21,450,631,801.92
  6. Step 6: Final answer
    x = 17,137,634,864.33

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1.5x scale

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.