Home / 202,859,891.40-304,289,837.10-138,289,809.90

Finding the Fourth Proportional to 202,859,891.40, 304,289,837.10 and 138,289,809.90

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Solution

The fourth proportional to 202,859,891.40, 304,289,837.10 and 138,289,809.90 is: 207,434,714.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,859,891.40 : 304,289,837.10 = 138,289,809.90 : x
  2. Step 2: Convert to fraction form
    202,859,891.40/304,289,837.10 = 138,289,809.90/x
  3. Step 3: Cross multiply
    202,859,891.40x = 304,289,837.10 × 138,289,809.90
  4. Step 4: Simplify right side
    202,859,891.40x = 42,080,183,727,060,976
  5. Step 5: Solve for x
    x = 42,080,183,727,060,976/202,859,891.40
  6. Step 6: Final answer
    x = 207,434,714.85

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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.