Home / 18,682,673.27-28,001,289.86-13,219,342.13

Finding the Fourth Proportional to 18,682,673.27, 28,001,289.86 and 13,219,342.13

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Solution

The fourth proportional to 18,682,673.27, 28,001,289.86 and 13,219,342.13 is: 19,812,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682,673.27 : 28,001,289.86 = 13,219,342.13 : x
  2. Step 2: Convert to fraction form
    18,682,673.27/28,001,289.86 = 13,219,342.13/x
  3. Step 3: Cross multiply
    18,682,673.27x = 28,001,289.86 × 13,219,342.13
  4. Step 4: Simplify right side
    18,682,673.27x = 370,158,630,534,536.62
  5. Step 5: Solve for x
    x = 370,158,630,534,536.62/18,682,673.27
  6. Step 6: Final answer
    x = 19,812,937.11

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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.