Home / 12,220,990.56-18,307,275.21-8,373,357.72

Finding the Fourth Proportional to 12,220,990.56, 18,307,275.21 and 8,373,357.72

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Solution

The fourth proportional to 12,220,990.56, 18,307,275.21 and 8,373,357.72 is: 12,543,448.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220,990.56 : 18,307,275.21 = 8,373,357.72 : x
  2. Step 2: Convert to fraction form
    12,220,990.56/18,307,275.21 = 8,373,357.72/x
  3. Step 3: Cross multiply
    12,220,990.56x = 18,307,275.21 × 8,373,357.72
  4. Step 4: Simplify right side
    12,220,990.56x = 153,293,364,211,818.12
  5. Step 5: Solve for x
    x = 153,293,364,211,818.12/12,220,990.56
  6. Step 6: Final answer
    x = 12,543,448.38

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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.