Home / 18,872,768.45-28,314,663.92-7,514,890.13

Finding the Fourth Proportional to 18,872,768.45, 28,314,663.92 and 7,514,890.13

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Solution

The fourth proportional to 18,872,768.45, 28,314,663.92 and 7,514,890.13 is: 11,274,529.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,872,768.45 : 28,314,663.92 = 7,514,890.13 : x
  2. Step 2: Convert to fraction form
    18,872,768.45/28,314,663.92 = 7,514,890.13/x
  3. Step 3: Cross multiply
    18,872,768.45x = 28,314,663.92 × 7,514,890.13
  4. Step 4: Simplify right side
    18,872,768.45x = 212,781,588,247,527.34
  5. Step 5: Solve for x
    x = 212,781,588,247,527.34/18,872,768.45
  6. Step 6: Final answer
    x = 11,274,529.69

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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.