Home / 12,379,505.76-17,084,945.60-6,947,019.36

Finding the Fourth Proportional to 12,379,505.76, 17,084,945.60 and 6,947,019.36

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Solution

The fourth proportional to 12,379,505.76, 17,084,945.60 and 6,947,019.36 is: 9,587,575.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379,505.76 : 17,084,945.60 = 6,947,019.36 : x
  2. Step 2: Convert to fraction form
    12,379,505.76/17,084,945.60 = 6,947,019.36/x
  3. Step 3: Cross multiply
    12,379,505.76x = 17,084,945.60 × 6,947,019.36
  4. Step 4: Simplify right side
    12,379,505.76x = 118,689,447,847,746.83
  5. Step 5: Solve for x
    x = 118,689,447,847,746.83/12,379,505.76
  6. Step 6: Final answer
    x = 9,587,575.64

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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.