Home / 20,784,002.20-31,176,716.10-6,406,955.80

Finding the Fourth Proportional to 20,784,002.20, 31,176,716.10 and 6,406,955.80

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Solution

The fourth proportional to 20,784,002.20, 31,176,716.10 and 6,406,955.80 is: 9,610,653.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784,002.20 : 31,176,716.10 = 6,406,955.80 : x
  2. Step 2: Convert to fraction form
    20,784,002.20/31,176,716.10 = 6,406,955.80/x
  3. Step 3: Cross multiply
    20,784,002.20x = 31,176,716.10 × 6,406,955.80
  4. Step 4: Simplify right side
    20,784,002.20x = 199,747,842,041,848.38
  5. Step 5: Solve for x
    x = 199,747,842,041,848.38/20,784,002.20
  6. Step 6: Final answer
    x = 9,610,653.43

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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.