Home / 20,735,606.40-31,103,409.60-10,531,939.20

Finding the Fourth Proportional to 20,735,606.40, 31,103,409.60 and 10,531,939.20

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Solution

The fourth proportional to 20,735,606.40, 31,103,409.60 and 10,531,939.20 is: 15,797,908.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735,606.40 : 31,103,409.60 = 10,531,939.20 : x
  2. Step 2: Convert to fraction form
    20,735,606.40/31,103,409.60 = 10,531,939.20/x
  3. Step 3: Cross multiply
    20,735,606.40x = 31,103,409.60 × 10,531,939.20
  4. Step 4: Simplify right side
    20,735,606.40x = 327,579,218,819,896.31
  5. Step 5: Solve for x
    x = 327,579,218,819,896.31/20,735,606.40
  6. Step 6: Final answer
    x = 15,797,908.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.