Home / 20,380,395.28-28,125,169-11,088,018.56

Finding the Fourth Proportional to 20,380,395.28, 28,125,169 and 11,088,018.56

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Solution

The fourth proportional to 20,380,395.28, 28,125,169 and 11,088,018.56 is: 15,301,587.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380,395.28 : 28,125,169 = 11,088,018.56 : x
  2. Step 2: Convert to fraction form
    20,380,395.28/28,125,169 = 11,088,018.56/x
  3. Step 3: Cross multiply
    20,380,395.28x = 28,125,169 × 11,088,018.56
  4. Step 4: Simplify right side
    20,380,395.28x = 311,852,395,875,136.62
  5. Step 5: Solve for x
    x = 311,852,395,875,136.62/20,380,395.28
  6. Step 6: Final answer
    x = 15,301,587.22

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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.