Home / 15,521,445.32-21,419,614.32-8,457,005.12

Finding the Fourth Proportional to 15,521,445.32, 21,419,614.32 and 8,457,005.12

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Solution

The fourth proportional to 15,521,445.32, 21,419,614.32 and 8,457,005.12 is: 11,670,677.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521,445.32 : 21,419,614.32 = 8,457,005.12 : x
  2. Step 2: Convert to fraction form
    15,521,445.32/21,419,614.32 = 8,457,005.12/x
  3. Step 3: Cross multiply
    15,521,445.32x = 21,419,614.32 × 8,457,005.12
  4. Step 4: Simplify right side
    15,521,445.32x = 181,145,787,972,665.31
  5. Step 5: Solve for x
    x = 181,145,787,972,665.31/15,521,445.32
  6. Step 6: Final answer
    x = 11,670,677.84

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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.