Home / 28,778,609.86-39,714,584.70-15,725,868.64

Finding the Fourth Proportional to 28,778,609.86, 39,714,584.70 and 15,725,868.64

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Solution

The fourth proportional to 28,778,609.86, 39,714,584.70 and 15,725,868.64 is: 21,701,755.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778,609.86 : 39,714,584.70 = 15,725,868.64 : x
  2. Step 2: Convert to fraction form
    28,778,609.86/39,714,584.70 = 15,725,868.64/x
  3. Step 3: Cross multiply
    28,778,609.86x = 39,714,584.70 × 15,725,868.64
  4. Step 4: Simplify right side
    28,778,609.86x = 624,546,342,084,353.88
  5. Step 5: Solve for x
    x = 624,546,342,084,353.88/28,778,609.86
  6. Step 6: Final answer
    x = 21,701,755.06

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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.