Home / 20,783,956.70-31,176,647.85-6,406,910.30

Finding the Fourth Proportional to 20,783,956.70, 31,176,647.85 and 6,406,910.30

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Solution

The fourth proportional to 20,783,956.70, 31,176,647.85 and 6,406,910.30 is: 9,610,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,956.70 : 31,176,647.85 = 6,406,910.30 : x
  2. Step 2: Convert to fraction form
    20,783,956.70/31,176,647.85 = 6,406,910.30/x
  3. Step 3: Cross multiply
    20,783,956.70x = 31,176,647.85 × 6,406,910.30
  4. Step 4: Simplify right side
    20,783,956.70x = 199,745,986,229,637.84
  5. Step 5: Solve for x
    x = 199,745,986,229,637.84/20,783,956.70
  6. Step 6: Final answer
    x = 9,610,585.18

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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.