Home / 198,233,999.10-297,350,998.65-120,749,901.30

Finding the Fourth Proportional to 198,233,999.10, 297,350,998.65 and 120,749,901.30

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Solution

The fourth proportional to 198,233,999.10, 297,350,998.65 and 120,749,901.30 is: 181,124,851.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,233,999.10 : 297,350,998.65 = 120,749,901.30 : x
  2. Step 2: Convert to fraction form
    198,233,999.10/297,350,998.65 = 120,749,901.30/x
  3. Step 3: Cross multiply
    198,233,999.10x = 297,350,998.65 × 120,749,901.30
  4. Step 4: Simplify right side
    198,233,999.10x = 35,905,103,738,443,928
  5. Step 5: Solve for x
    x = 35,905,103,738,443,928/198,233,999.10
  6. Step 6: Final answer
    x = 181,124,851.95

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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.