Home / 30,728,768.38-42,404,438.39-16,790,601.93

Finding the Fourth Proportional to 30,728,768.38, 42,404,438.39 and 16,790,601.93

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Solution

The fourth proportional to 30,728,768.38, 42,404,438.39 and 16,790,601.93 is: 23,170,341.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,728,768.38 : 42,404,438.39 = 16,790,601.93 : x
  2. Step 2: Convert to fraction form
    30,728,768.38/42,404,438.39 = 16,790,601.93/x
  3. Step 3: Cross multiply
    30,728,768.38x = 42,404,438.39 × 16,790,601.93
  4. Step 4: Simplify right side
    30,728,768.38x = 711,996,044,775,724.88
  5. Step 5: Solve for x
    x = 711,996,044,775,724.88/30,728,768.38
  6. Step 6: Final answer
    x = 23,170,341.09

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1.5x scale

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.