Home / 155,410,328.24-214,460,635.20-85,794,217.28

Finding the Fourth Proportional to 155,410,328.24, 214,460,635.20 and 85,794,217.28

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Solution

The fourth proportional to 155,410,328.24, 214,460,635.20 and 85,794,217.28 is: 118,392,918.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,410,328.24 : 214,460,635.20 = 85,794,217.28 : x
  2. Step 2: Convert to fraction form
    155,410,328.24/214,460,635.20 = 85,794,217.28/x
  3. Step 3: Cross multiply
    155,410,328.24x = 214,460,635.20 × 85,794,217.28
  4. Step 4: Simplify right side
    155,410,328.24x = 18,399,482,334,355,616
  5. Step 5: Solve for x
    x = 18,399,482,334,355,616/155,410,328.24
  6. Step 6: Final answer
    x = 118,392,918.56

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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.