Home / 6,321,666-8,723,825.28-3,420,989.76

Finding the Fourth Proportional to 6,321,666, 8,723,825.28 and 3,420,989.76

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Solution

The fourth proportional to 6,321,666, 8,723,825.28 and 3,420,989.76 is: 4,720,925.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321,666 : 8,723,825.28 = 3,420,989.76 : x
  2. Step 2: Convert to fraction form
    6,321,666/8,723,825.28 = 3,420,989.76/x
  3. Step 3: Cross multiply
    6,321,666x = 8,723,825.28 × 3,420,989.76
  4. Step 4: Simplify right side
    6,321,666x = 29,844,116,950,909.13
  5. Step 5: Solve for x
    x = 29,844,116,950,909.13/6,321,666
  6. Step 6: Final answer
    x = 4,720,925.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.