Home / 18,639,286.02-25,700,205.21-12,761,770.30

Finding the Fourth Proportional to 18,639,286.02, 25,700,205.21 and 12,761,770.30

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Solution

The fourth proportional to 18,639,286.02, 25,700,205.21 and 12,761,770.30 is: 17,596,173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639,286.02 : 25,700,205.21 = 12,761,770.30 : x
  2. Step 2: Convert to fraction form
    18,639,286.02/25,700,205.21 = 12,761,770.30/x
  3. Step 3: Cross multiply
    18,639,286.02x = 25,700,205.21 × 12,761,770.30
  4. Step 4: Simplify right side
    18,639,286.02x = 327,980,115,552,883.31
  5. Step 5: Solve for x
    x = 327,980,115,552,883.31/18,639,286.02
  6. Step 6: Final answer
    x = 17,596,173.76

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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.