Home / 12,265,980.80-18,398,971.20-4,188,077.60

Finding the Fourth Proportional to 12,265,980.80, 18,398,971.20 and 4,188,077.60

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Solution

The fourth proportional to 12,265,980.80, 18,398,971.20 and 4,188,077.60 is: 6,282,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265,980.80 : 18,398,971.20 = 4,188,077.60 : x
  2. Step 2: Convert to fraction form
    12,265,980.80/18,398,971.20 = 4,188,077.60/x
  3. Step 3: Cross multiply
    12,265,980.80x = 18,398,971.20 × 4,188,077.60
  4. Step 4: Simplify right side
    12,265,980.80x = 77,056,319,145,765.12
  5. Step 5: Solve for x
    x = 77,056,319,145,765.12/12,265,980.80
  6. Step 6: Final answer
    x = 6,282,116.40

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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.