Home / 18,682,672.52-28,001,288.73-13,219,341.38

Finding the Fourth Proportional to 18,682,672.52, 28,001,288.73 and 13,219,341.38

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Solution

The fourth proportional to 18,682,672.52, 28,001,288.73 and 13,219,341.38 is: 19,812,935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682,672.52 : 28,001,288.73 = 13,219,341.38 : x
  2. Step 2: Convert to fraction form
    18,682,672.52/28,001,288.73 = 13,219,341.38/x
  3. Step 3: Cross multiply
    18,682,672.52x = 28,001,288.73 × 13,219,341.38
  4. Step 4: Simplify right side
    18,682,672.52x = 370,158,594,692,239.25
  5. Step 5: Solve for x
    x = 370,158,594,692,239.25/18,682,672.52
  6. Step 6: Final answer
    x = 19,812,935.98

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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.