Home / 10,189,784.94-15,287,174.37-8,371,224.78

Finding the Fourth Proportional to 10,189,784.94, 15,287,174.37 and 8,371,224.78

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Solution

The fourth proportional to 10,189,784.94, 15,287,174.37 and 8,371,224.78 is: 12,558,888.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,189,784.94 : 15,287,174.37 = 8,371,224.78 : x
  2. Step 2: Convert to fraction form
    10,189,784.94/15,287,174.37 = 8,371,224.78/x
  3. Step 3: Cross multiply
    10,189,784.94x = 15,287,174.37 × 8,371,224.78
  4. Step 4: Simplify right side
    10,189,784.94x = 127,972,372,902,324.89
  5. Step 5: Solve for x
    x = 127,972,372,902,324.89/10,189,784.94
  6. Step 6: Final answer
    x = 12,558,888.50

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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.