Home / 18,790,270.52-28,185,421.23-5,143,529.93

Finding the Fourth Proportional to 18,790,270.52, 28,185,421.23 and 5,143,529.93

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Solution

The fourth proportional to 18,790,270.52, 28,185,421.23 and 5,143,529.93 is: 7,715,299.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790,270.52 : 28,185,421.23 = 5,143,529.93 : x
  2. Step 2: Convert to fraction form
    18,790,270.52/28,185,421.23 = 5,143,529.93/x
  3. Step 3: Cross multiply
    18,790,270.52x = 28,185,421.23 × 5,143,529.93
  4. Step 4: Simplify right side
    18,790,270.52x = 144,972,557,545,235.31
  5. Step 5: Solve for x
    x = 144,972,557,545,235.31/18,790,270.52
  6. Step 6: Final answer
    x = 7,715,299.12

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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.