Home / 8,430,356.86-11,634,174.08-5,166,540.97

Finding the Fourth Proportional to 8,430,356.86, 11,634,174.08 and 5,166,540.97

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Solution

The fourth proportional to 8,430,356.86, 11,634,174.08 and 5,166,540.97 is: 7,129,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430,356.86 : 11,634,174.08 = 5,166,540.97 : x
  2. Step 2: Convert to fraction form
    8,430,356.86/11,634,174.08 = 5,166,540.97/x
  3. Step 3: Cross multiply
    8,430,356.86x = 11,634,174.08 × 5,166,540.97
  4. Step 4: Simplify right side
    8,430,356.86x = 60,108,437,036,432.05
  5. Step 5: Solve for x
    x = 60,108,437,036,432.05/8,430,356.86
  6. Step 6: Final answer
    x = 7,129,999.13

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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.