Home / 5,485,981.20-8,205,643.80-4,921,443.60

Finding the Fourth Proportional to 5,485,981.20, 8,205,643.80 and 4,921,443.60

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Solution

The fourth proportional to 5,485,981.20, 8,205,643.80 and 4,921,443.60 is: 7,361,237.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485,981.20 : 8,205,643.80 = 4,921,443.60 : x
  2. Step 2: Convert to fraction form
    5,485,981.20/8,205,643.80 = 4,921,443.60/x
  3. Step 3: Cross multiply
    5,485,981.20x = 8,205,643.80 × 4,921,443.60
  4. Step 4: Simplify right side
    5,485,981.20x = 40,383,613,163,389.68
  5. Step 5: Solve for x
    x = 40,383,613,163,389.68/5,485,981.20
  6. Step 6: Final answer
    x = 7,361,237.98

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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.