Home / 20,998,425.48-28,979,551.89-11,581,058.49

Finding the Fourth Proportional to 20,998,425.48, 28,979,551.89 and 11,581,058.49

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Solution

The fourth proportional to 20,998,425.48, 28,979,551.89 and 11,581,058.49 is: 15,982,811.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998,425.48 : 28,979,551.89 = 11,581,058.49 : x
  2. Step 2: Convert to fraction form
    20,998,425.48/28,979,551.89 = 11,581,058.49/x
  3. Step 3: Cross multiply
    20,998,425.48x = 28,979,551.89 × 11,581,058.49
  4. Step 4: Simplify right side
    20,998,425.48x = 335,613,885,452,080.06
  5. Step 5: Solve for x
    x = 335,613,885,452,080.06/20,998,425.48
  6. Step 6: Final answer
    x = 15,982,811.94

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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.