Home / 6,421,429.08-8,861,504.58-3,520,812.78

Finding the Fourth Proportional to 6,421,429.08, 8,861,504.58 and 3,520,812.78

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Solution

The fourth proportional to 6,421,429.08, 8,861,504.58 and 3,520,812.78 is: 4,858,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421,429.08 : 8,861,504.58 = 3,520,812.78 : x
  2. Step 2: Convert to fraction form
    6,421,429.08/8,861,504.58 = 3,520,812.78/x
  3. Step 3: Cross multiply
    6,421,429.08x = 8,861,504.58 × 3,520,812.78
  4. Step 4: Simplify right side
    6,421,429.08x = 31,199,698,575,292.53
  5. Step 5: Solve for x
    x = 31,199,698,575,292.53/6,421,429.08
  6. Step 6: Final answer
    x = 4,858,684.60

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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.