Home / 21,193,429.80-31,794,885.30-7,730,257.80

Finding the Fourth Proportional to 21,193,429.80, 31,794,885.30 and 7,730,257.80

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Solution

The fourth proportional to 21,193,429.80, 31,794,885.30 and 7,730,257.80 is: 11,597,115.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193,429.80 : 31,794,885.30 = 7,730,257.80 : x
  2. Step 2: Convert to fraction form
    21,193,429.80/31,794,885.30 = 7,730,257.80/x
  3. Step 3: Cross multiply
    21,193,429.80x = 31,794,885.30 × 7,730,257.80
  4. Step 4: Simplify right side
    21,193,429.80x = 245,782,660,090,430.34
  5. Step 5: Solve for x
    x = 245,782,660,090,430.34/21,193,429.80
  6. Step 6: Final answer
    x = 11,597,115.82

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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.