Home / 110,591,999.80-165,887,999.70-78,343,372.60

Finding the Fourth Proportional to 110,591,999.80, 165,887,999.70 and 78,343,372.60

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Solution

The fourth proportional to 110,591,999.80, 165,887,999.70 and 78,343,372.60 is: 117,515,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,591,999.80 : 165,887,999.70 = 78,343,372.60 : x
  2. Step 2: Convert to fraction form
    110,591,999.80/165,887,999.70 = 78,343,372.60/x
  3. Step 3: Cross multiply
    110,591,999.80x = 165,887,999.70 × 78,343,372.60
  4. Step 4: Simplify right side
    110,591,999.80x = 12,996,225,370,365,786
  5. Step 5: Solve for x
    x = 12,996,225,370,365,786/110,591,999.80
  6. Step 6: Final answer
    x = 117,515,058.90

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1.5x scale

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.