Home / 18,768,165.23-25,878,001.55-15,044,018.51

Finding the Fourth Proportional to 18,768,165.23, 25,878,001.55 and 15,044,018.51

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Solution

The fourth proportional to 18,768,165.23, 25,878,001.55 and 15,044,018.51 is: 20,743,057.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768,165.23 : 25,878,001.55 = 15,044,018.51 : x
  2. Step 2: Convert to fraction form
    18,768,165.23/25,878,001.55 = 15,044,018.51/x
  3. Step 3: Cross multiply
    18,768,165.23x = 25,878,001.55 × 15,044,018.51
  4. Step 4: Simplify right side
    18,768,165.23x = 389,309,134,115,398.62
  5. Step 5: Solve for x
    x = 389,309,134,115,398.62/18,768,165.23
  6. Step 6: Final answer
    x = 20,743,057.70

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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.