Home / 20,471,885.40-30,707,828.10-9,710,205.15

Finding the Fourth Proportional to 20,471,885.40, 30,707,828.10 and 9,710,205.15

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Solution

The fourth proportional to 20,471,885.40, 30,707,828.10 and 9,710,205.15 is: 14,565,307.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,471,885.40 : 30,707,828.10 = 9,710,205.15 : x
  2. Step 2: Convert to fraction form
    20,471,885.40/30,707,828.10 = 9,710,205.15/x
  3. Step 3: Cross multiply
    20,471,885.40x = 30,707,828.10 × 9,710,205.15
  4. Step 4: Simplify right side
    20,471,885.40x = 298,179,310,561,934.75
  5. Step 5: Solve for x
    x = 298,179,310,561,934.75/20,471,885.40
  6. Step 6: Final answer
    x = 14,565,307.73

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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.