Home / 18,728,615.52-28,092,959.42-7,219,502.56

Finding the Fourth Proportional to 18,728,615.52, 28,092,959.42 and 7,219,502.56

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Solution

The fourth proportional to 18,728,615.52, 28,092,959.42 and 7,219,502.56 is: 10,829,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728,615.52 : 28,092,959.42 = 7,219,502.56 : x
  2. Step 2: Convert to fraction form
    18,728,615.52/28,092,959.42 = 7,219,502.56/x
  3. Step 3: Cross multiply
    18,728,615.52x = 28,092,959.42 × 7,219,502.56
  4. Step 4: Simplify right side
    18,728,615.52x = 202,817,192,450,666.12
  5. Step 5: Solve for x
    x = 202,817,192,450,666.12/18,728,615.52
  6. Step 6: Final answer
    x = 10,829,267.77

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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.