Home / 13,152,109.80-18,155,508.30-7,997,127.24

Finding the Fourth Proportional to 13,152,109.80, 18,155,508.30 and 7,997,127.24

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Solution

The fourth proportional to 13,152,109.80, 18,155,508.30 and 7,997,127.24 is: 11,039,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152,109.80 : 18,155,508.30 = 7,997,127.24 : x
  2. Step 2: Convert to fraction form
    13,152,109.80/18,155,508.30 = 7,997,127.24/x
  3. Step 3: Cross multiply
    13,152,109.80x = 18,155,508.30 × 7,997,127.24
  4. Step 4: Simplify right side
    13,152,109.80x = 145,191,909,981,976.09
  5. Step 5: Solve for x
    x = 145,191,909,981,976.09/13,152,109.80
  6. Step 6: Final answer
    x = 11,039,438.71

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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.