Home / 20,942,115-31,412,258.80-6,564,854.76

Finding the Fourth Proportional to 20,942,115, 31,412,258.80 and 6,564,854.76

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Solution

The fourth proportional to 20,942,115, 31,412,258.80 and 6,564,854.76 is: 9,846,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,942,115 : 31,412,258.80 = 6,564,854.76 : x
  2. Step 2: Convert to fraction form
    20,942,115/31,412,258.80 = 6,564,854.76/x
  3. Step 3: Cross multiply
    20,942,115x = 31,412,258.80 × 6,564,854.76
  4. Step 4: Simplify right side
    20,942,115x = 206,216,916,705,531.88
  5. Step 5: Solve for x
    x = 206,216,916,705,531.88/20,942,115
  6. Step 6: Final answer
    x = 9,846,995.72

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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.