Home / 18,782,961.60-25,908,443.28-12,899,756.64

Finding the Fourth Proportional to 18,782,961.60, 25,908,443.28 and 12,899,756.64

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Solution

The fourth proportional to 18,782,961.60, 25,908,443.28 and 12,899,756.64 is: 17,793,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782,961.60 : 25,908,443.28 = 12,899,756.64 : x
  2. Step 2: Convert to fraction form
    18,782,961.60/25,908,443.28 = 12,899,756.64/x
  3. Step 3: Cross multiply
    18,782,961.60x = 25,908,443.28 × 12,899,756.64
  4. Step 4: Simplify right side
    18,782,961.60x = 334,212,613,233,243.44
  5. Step 5: Solve for x
    x = 334,212,613,233,243.44/18,782,961.60
  6. Step 6: Final answer
    x = 17,793,392.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.