Home / 38,713,487.88-53,426,023.09-21,071,538.09

Finding the Fourth Proportional to 38,713,487.88, 53,426,023.09 and 21,071,538.09

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Solution

The fourth proportional to 38,713,487.88, 53,426,023.09 and 21,071,538.09 is: 29,079,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,713,487.88 : 53,426,023.09 = 21,071,538.09 : x
  2. Step 2: Convert to fraction form
    38,713,487.88/53,426,023.09 = 21,071,538.09/x
  3. Step 3: Cross multiply
    38,713,487.88x = 53,426,023.09 × 21,071,538.09
  4. Step 4: Simplify right side
    38,713,487.88x = 1,125,768,480,595,996.62
  5. Step 5: Solve for x
    x = 1,125,768,480,595,996.62/38,713,487.88
  6. Step 6: Final answer
    x = 29,079,489.92

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Double scale
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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.