Home / 8,619,913-12,929,934.30-3,826,313.56

Finding the Fourth Proportional to 8,619,913, 12,929,934.30 and 3,826,313.56

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Solution

The fourth proportional to 8,619,913, 12,929,934.30 and 3,826,313.56 is: 5,739,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619,913 : 12,929,934.30 = 3,826,313.56 : x
  2. Step 2: Convert to fraction form
    8,619,913/12,929,934.30 = 3,826,313.56/x
  3. Step 3: Cross multiply
    8,619,913x = 12,929,934.30 × 3,826,313.56
  4. Step 4: Simplify right side
    8,619,913x = 49,473,982,941,999.11
  5. Step 5: Solve for x
    x = 49,473,982,941,999.11/8,619,913
  6. Step 6: Final answer
    x = 5,739,499.10

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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.