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Finding the Fourth Proportional to 30,471,578.78, 45,697,766.37 and 9,996,527.11

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Solution

The fourth proportional to 30,471,578.78, 45,697,766.37 and 9,996,527.11 is: 14,991,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,471,578.78 : 45,697,766.37 = 9,996,527.11 : x
  2. Step 2: Convert to fraction form
    30,471,578.78/45,697,766.37 = 9,996,527.11/x
  3. Step 3: Cross multiply
    30,471,578.78x = 45,697,766.37 × 9,996,527.11
  4. Step 4: Simplify right side
    30,471,578.78x = 456,818,960,155,662.44
  5. Step 5: Solve for x
    x = 456,818,960,155,662.44/30,471,578.78
  6. Step 6: Final answer
    x = 14,991,640.69

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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.