Home / 12,127,936.55-18,191,904.83-8,708,999.45

Finding the Fourth Proportional to 12,127,936.55, 18,191,904.83 and 8,708,999.45

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Solution

The fourth proportional to 12,127,936.55, 18,191,904.83 and 8,708,999.45 is: 13,063,499.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,936.55 : 18,191,904.83 = 8,708,999.45 : x
  2. Step 2: Convert to fraction form
    12,127,936.55/18,191,904.83 = 8,708,999.45/x
  3. Step 3: Cross multiply
    12,127,936.55x = 18,191,904.83 × 8,708,999.45
  4. Step 4: Simplify right side
    12,127,936.55x = 158,433,289,158,922.31
  5. Step 5: Solve for x
    x = 158,433,289,158,922.31/12,127,936.55
  6. Step 6: Final answer
    x = 13,063,499.18

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Similar ratio
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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.