Home / 12,124,879.20-18,187,318.80-11,005,135.20

Finding the Fourth Proportional to 12,124,879.20, 18,187,318.80 and 11,005,135.20

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Solution

The fourth proportional to 12,124,879.20, 18,187,318.80 and 11,005,135.20 is: 16,507,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124,879.20 : 18,187,318.80 = 11,005,135.20 : x
  2. Step 2: Convert to fraction form
    12,124,879.20/18,187,318.80 = 11,005,135.20/x
  3. Step 3: Cross multiply
    12,124,879.20x = 18,187,318.80 × 11,005,135.20
  4. Step 4: Simplify right side
    12,124,879.20x = 200,153,902,319,501.75
  5. Step 5: Solve for x
    x = 200,153,902,319,501.75/12,124,879.20
  6. Step 6: Final answer
    x = 16,507,702.80

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1.5x scale

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.