Home / 120,880,731.28-166,813,813.38-67,235,030.68

Finding the Fourth Proportional to 120,880,731.28, 166,813,813.38 and 67,235,030.68

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Solution

The fourth proportional to 120,880,731.28, 166,813,813.38 and 67,235,030.68 is: 92,783,454.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,880,731.28 : 166,813,813.38 = 67,235,030.68 : x
  2. Step 2: Convert to fraction form
    120,880,731.28/166,813,813.38 = 67,235,030.68/x
  3. Step 3: Cross multiply
    120,880,731.28x = 166,813,813.38 × 67,235,030.68
  4. Step 4: Simplify right side
    120,880,731.28x = 11,215,731,860,452,096
  5. Step 5: Solve for x
    x = 11,215,731,860,452,096/120,880,731.28
  6. Step 6: Final answer
    x = 92,783,454.75

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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.