Home / 65,979,022.80-98,993,417.40-31,930,510.80

Finding the Fourth Proportional to 65,979,022.80, 98,993,417.40 and 31,930,510.80

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Solution

The fourth proportional to 65,979,022.80, 98,993,417.40 and 31,930,510.80 is: 47,907,808.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,979,022.80 : 98,993,417.40 = 31,930,510.80 : x
  2. Step 2: Convert to fraction form
    65,979,022.80/98,993,417.40 = 31,930,510.80/x
  3. Step 3: Cross multiply
    65,979,022.80x = 98,993,417.40 × 31,930,510.80
  4. Step 4: Simplify right side
    65,979,022.80x = 3,160,910,383,419,608
  5. Step 5: Solve for x
    x = 3,160,910,383,419,608/65,979,022.80
  6. Step 6: Final answer
    x = 47,907,808.41

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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.