Home / 6,430,816.43-8,874,296.78-3,639,879.78

Finding the Fourth Proportional to 6,430,816.43, 8,874,296.78 and 3,639,879.78

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Solution

The fourth proportional to 6,430,816.43, 8,874,296.78 and 3,639,879.78 is: 5,022,903.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430,816.43 : 8,874,296.78 = 3,639,879.78 : x
  2. Step 2: Convert to fraction form
    6,430,816.43/8,874,296.78 = 3,639,879.78/x
  3. Step 3: Cross multiply
    6,430,816.43x = 8,874,296.78 × 3,639,879.78
  4. Step 4: Simplify right side
    6,430,816.43x = 32,301,373,393,041.71
  5. Step 5: Solve for x
    x = 32,301,373,393,041.71/6,430,816.43
  6. Step 6: Final answer
    x = 5,022,903.98

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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.