Home / 20,158,997.32-27,818,723.46-11,457,018.28

Finding the Fourth Proportional to 20,158,997.32, 27,818,723.46 and 11,457,018.28

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Solution

The fourth proportional to 20,158,997.32, 27,818,723.46 and 11,457,018.28 is: 15,810,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158,997.32 : 27,818,723.46 = 11,457,018.28 : x
  2. Step 2: Convert to fraction form
    20,158,997.32/27,818,723.46 = 11,457,018.28/x
  3. Step 3: Cross multiply
    20,158,997.32x = 27,818,723.46 × 11,457,018.28
  4. Step 4: Simplify right side
    20,158,997.32x = 318,719,623,207,484.81
  5. Step 5: Solve for x
    x = 318,719,623,207,484.81/20,158,997.32
  6. Step 6: Final answer
    x = 15,810,291.46

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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.