Home / 198,288,006.30-297,432,009.45-125,268,012.90

Finding the Fourth Proportional to 198,288,006.30, 297,432,009.45 and 125,268,012.90

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Solution

The fourth proportional to 198,288,006.30, 297,432,009.45 and 125,268,012.90 is: 187,902,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,288,006.30 : 297,432,009.45 = 125,268,012.90 : x
  2. Step 2: Convert to fraction form
    198,288,006.30/297,432,009.45 = 125,268,012.90/x
  3. Step 3: Cross multiply
    198,288,006.30x = 297,432,009.45 × 125,268,012.90
  4. Step 4: Simplify right side
    198,288,006.30x = 37,258,716,796,655,520
  5. Step 5: Solve for x
    x = 37,258,716,796,655,520/198,288,006.30
  6. Step 6: Final answer
    x = 187,902,019.35

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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.