Home / 31,638,646.50-43,665,991.29-20,037,288.66

Finding the Fourth Proportional to 31,638,646.50, 43,665,991.29 and 20,037,288.66

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Solution

The fourth proportional to 31,638,646.50, 43,665,991.29 and 20,037,288.66 is: 27,654,409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638,646.50 : 43,665,991.29 = 20,037,288.66 : x
  2. Step 2: Convert to fraction form
    31,638,646.50/43,665,991.29 = 20,037,288.66/x
  3. Step 3: Cross multiply
    31,638,646.50x = 43,665,991.29 × 20,037,288.66
  4. Step 4: Simplify right side
    31,638,646.50x = 874,948,072,102,775.75
  5. Step 5: Solve for x
    x = 874,948,072,102,775.75/31,638,646.50
  6. Step 6: Final answer
    x = 27,654,409.05

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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.