Home / 11,818,422.40-16,306,645.80-7,172,102.20

Finding the Fourth Proportional to 11,818,422.40, 16,306,645.80 and 7,172,102.20

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Solution

The fourth proportional to 11,818,422.40, 16,306,645.80 and 7,172,102.20 is: 9,895,815.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818,422.40 : 16,306,645.80 = 7,172,102.20 : x
  2. Step 2: Convert to fraction form
    11,818,422.40/16,306,645.80 = 7,172,102.20/x
  3. Step 3: Cross multiply
    11,818,422.40x = 16,306,645.80 × 7,172,102.20
  4. Step 4: Simplify right side
    11,818,422.40x = 116,952,930,216,800.77
  5. Step 5: Solve for x
    x = 116,952,930,216,800.77/11,818,422.40
  6. Step 6: Final answer
    x = 9,895,815.72

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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.