Home / 7,770,978.40-11,656,467.60-7,273,314.40

Finding the Fourth Proportional to 7,770,978.40, 11,656,467.60 and 7,273,314.40

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Solution

The fourth proportional to 7,770,978.40, 11,656,467.60 and 7,273,314.40 is: 10,909,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770,978.40 : 11,656,467.60 = 7,273,314.40 : x
  2. Step 2: Convert to fraction form
    7,770,978.40/11,656,467.60 = 7,273,314.40/x
  3. Step 3: Cross multiply
    7,770,978.40x = 11,656,467.60 × 7,273,314.40
  4. Step 4: Simplify right side
    7,770,978.40x = 84,781,153,648,213.44
  5. Step 5: Solve for x
    x = 84,781,153,648,213.44/7,770,978.40
  6. Step 6: Final answer
    x = 10,909,971.60

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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.