Home / 18,909,366.06-28,372,906.17-9,319,516.86

Finding the Fourth Proportional to 18,909,366.06, 28,372,906.17 and 9,319,516.86

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Solution

The fourth proportional to 18,909,366.06, 28,372,906.17 and 9,319,516.86 is: 13,983,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909,366.06 : 28,372,906.17 = 9,319,516.86 : x
  2. Step 2: Convert to fraction form
    18,909,366.06/28,372,906.17 = 9,319,516.86/x
  3. Step 3: Cross multiply
    18,909,366.06x = 28,372,906.17 × 9,319,516.86
  4. Step 4: Simplify right side
    18,909,366.06x = 264,421,777,418,513.03
  5. Step 5: Solve for x
    x = 264,421,777,418,513.03/18,909,366.06
  6. Step 6: Final answer
    x = 13,983,640.52

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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.