Home / 120,780,880.43-166,679,818.74-67,140,578.53

Finding the Fourth Proportional to 120,780,880.43, 166,679,818.74 and 67,140,578.53

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Solution

The fourth proportional to 120,780,880.43, 166,679,818.74 and 67,140,578.53 is: 92,655,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,780,880.43 : 166,679,818.74 = 67,140,578.53 : x
  2. Step 2: Convert to fraction form
    120,780,880.43/166,679,818.74 = 67,140,578.53/x
  3. Step 3: Cross multiply
    120,780,880.43x = 166,679,818.74 × 67,140,578.53
  4. Step 4: Simplify right side
    120,780,880.43x = 11,190,979,459,687,486
  5. Step 5: Solve for x
    x = 11,190,979,459,687,486/120,780,880.43
  6. Step 6: Final answer
    x = 92,655,223.41

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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.