Home / 21,146,441.13-29,183,532.71-11,979,159.21

Finding the Fourth Proportional to 21,146,441.13, 29,183,532.71 and 11,979,159.21

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Solution

The fourth proportional to 21,146,441.13, 29,183,532.71 and 11,979,159.21 is: 16,532,057.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146,441.13 : 29,183,532.71 = 11,979,159.21 : x
  2. Step 2: Convert to fraction form
    21,146,441.13/29,183,532.71 = 11,979,159.21/x
  3. Step 3: Cross multiply
    21,146,441.13x = 29,183,532.71 × 11,979,159.21
  4. Step 4: Simplify right side
    21,146,441.13x = 349,594,184,583,436.94
  5. Step 5: Solve for x
    x = 349,594,184,583,436.94/21,146,441.13
  6. Step 6: Final answer
    x = 16,532,057.68

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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.