Home / 66,512,427.20-99,801,818.40-37,780,625.60

Finding the Fourth Proportional to 66,512,427.20, 99,801,818.40 and 37,780,625.60

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Solution

The fourth proportional to 66,512,427.20, 99,801,818.40 and 37,780,625.60 is: 56,689,784.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,512,427.20 : 99,801,818.40 = 37,780,625.60 : x
  2. Step 2: Convert to fraction form
    66,512,427.20/99,801,818.40 = 37,780,625.60/x
  3. Step 3: Cross multiply
    66,512,427.20x = 99,801,818.40 × 37,780,625.60
  4. Step 4: Simplify right side
    66,512,427.20x = 3,770,575,135,169,591.50
  5. Step 5: Solve for x
    x = 3,770,575,135,169,591.50/66,512,427.20
  6. Step 6: Final answer
    x = 56,689,784.06

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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.