Home / 18,785,154.34-28,158,066.94-7,861,602.93

Finding the Fourth Proportional to 18,785,154.34, 28,158,066.94 and 7,861,602.93

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Solution

The fourth proportional to 18,785,154.34, 28,158,066.94 and 7,861,602.93 is: 11,784,174.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785,154.34 : 28,158,066.94 = 7,861,602.93 : x
  2. Step 2: Convert to fraction form
    18,785,154.34/28,158,066.94 = 7,861,602.93/x
  3. Step 3: Cross multiply
    18,785,154.34x = 28,158,066.94 × 7,861,602.93
  4. Step 4: Simplify right side
    18,785,154.34x = 221,367,541,558,640.12
  5. Step 5: Solve for x
    x = 221,367,541,558,640.12/18,785,154.34
  6. Step 6: Final answer
    x = 11,784,174.76

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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.