Home / 18,785,158.12-28,158,072.63-7,861,606.72

Finding the Fourth Proportional to 18,785,158.12, 28,158,072.63 and 7,861,606.72

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Solution

The fourth proportional to 18,785,158.12, 28,158,072.63 and 7,861,606.72 is: 11,784,180.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785,158.12 : 28,158,072.63 = 7,861,606.72 : x
  2. Step 2: Convert to fraction form
    18,785,158.12/28,158,072.63 = 7,861,606.72/x
  3. Step 3: Cross multiply
    18,785,158.12x = 28,158,072.63 × 7,861,606.72
  4. Step 4: Simplify right side
    18,785,158.12x = 221,367,693,010,256.06
  5. Step 5: Solve for x
    x = 221,367,693,010,256.06/18,785,158.12
  6. Step 6: Final answer
    x = 11,784,180.45

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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.