Home / 6,421,429.83-8,861,505.61-3,520,813.53

Finding the Fourth Proportional to 6,421,429.83, 8,861,505.61 and 3,520,813.53

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Solution

The fourth proportional to 6,421,429.83, 8,861,505.61 and 3,520,813.53 is: 4,858,685.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421,429.83 : 8,861,505.61 = 3,520,813.53 : x
  2. Step 2: Convert to fraction form
    6,421,429.83/8,861,505.61 = 3,520,813.53/x
  3. Step 3: Cross multiply
    6,421,429.83x = 8,861,505.61 × 3,520,813.53
  4. Step 4: Simplify right side
    6,421,429.83x = 31,199,708,847,858.90
  5. Step 5: Solve for x
    x = 31,199,708,847,858.90/6,421,429.83
  6. Step 6: Final answer
    x = 4,858,685.63

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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.