Home / 198,443,079.27-297,704,352.42-111,128,765.67

Finding the Fourth Proportional to 198,443,079.27, 297,704,352.42 and 111,128,765.67

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Solution

The fourth proportional to 198,443,079.27, 297,704,352.42 and 111,128,765.67 is: 166,715,399.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,443,079.27 : 297,704,352.42 = 111,128,765.67 : x
  2. Step 2: Convert to fraction form
    198,443,079.27/297,704,352.42 = 111,128,765.67/x
  3. Step 3: Cross multiply
    198,443,079.27x = 297,704,352.42 × 111,128,765.67
  4. Step 4: Simplify right side
    198,443,079.27x = 33,083,517,219,021,280
  5. Step 5: Solve for x
    x = 33,083,517,219,021,280/198,443,079.27
  6. Step 6: Final answer
    x = 166,715,399.40

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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.