Home / 18,745,754.36-28,122,043.26-8,510,769.32

Finding the Fourth Proportional to 18,745,754.36, 28,122,043.26 and 8,510,769.32

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Solution

The fourth proportional to 18,745,754.36, 28,122,043.26 and 8,510,769.32 is: 12,767,702.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745,754.36 : 28,122,043.26 = 8,510,769.32 : x
  2. Step 2: Convert to fraction form
    18,745,754.36/28,122,043.26 = 8,510,769.32/x
  3. Step 3: Cross multiply
    18,745,754.36x = 28,122,043.26 × 8,510,769.32
  4. Step 4: Simplify right side
    18,745,754.36x = 239,340,222,992,920.81
  5. Step 5: Solve for x
    x = 239,340,222,992,920.81/18,745,754.36
  6. Step 6: Final answer
    x = 12,767,702.94

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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.