Home / 15,320,921.32-21,142,699.21-8,351,446.24

Finding the Fourth Proportional to 15,320,921.32, 21,142,699.21 and 8,351,446.24

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Solution

The fourth proportional to 15,320,921.32, 21,142,699.21 and 8,351,446.24 is: 11,524,901.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,320,921.32 : 21,142,699.21 = 8,351,446.24 : x
  2. Step 2: Convert to fraction form
    15,320,921.32/21,142,699.21 = 8,351,446.24/x
  3. Step 3: Cross multiply
    15,320,921.32x = 21,142,699.21 × 8,351,446.24
  4. Step 4: Simplify right side
    15,320,921.32x = 176,572,115,820,805.47
  5. Step 5: Solve for x
    x = 176,572,115,820,805.47/15,320,921.32
  6. Step 6: Final answer
    x = 11,524,901.94

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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.