Home / 66,880,170.80-100,320,256.20-56,676,503.60

Finding the Fourth Proportional to 66,880,170.80, 100,320,256.20 and 56,676,503.60

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Solution

The fourth proportional to 66,880,170.80, 100,320,256.20 and 56,676,503.60 is: 85,014,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,880,170.80 : 100,320,256.20 = 56,676,503.60 : x
  2. Step 2: Convert to fraction form
    66,880,170.80/100,320,256.20 = 56,676,503.60/x
  3. Step 3: Cross multiply
    66,880,170.80x = 100,320,256.20 × 56,676,503.60
  4. Step 4: Simplify right side
    66,880,170.80x = 5,685,801,361,672,223
  5. Step 5: Solve for x
    x = 5,685,801,361,672,223/66,880,170.80
  6. Step 6: Final answer
    x = 85,014,755.40

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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.