Home / 253,218,267.90-379,820,315.61-80,705,433.42

Finding the Fourth Proportional to 253,218,267.90, 379,820,315.61 and 80,705,433.42

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Solution

The fourth proportional to 253,218,267.90, 379,820,315.61 and 80,705,433.42 is: 121,055,891.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,218,267.90 : 379,820,315.61 = 80,705,433.42 : x
  2. Step 2: Convert to fraction form
    253,218,267.90/379,820,315.61 = 80,705,433.42/x
  3. Step 3: Cross multiply
    253,218,267.90x = 379,820,315.61 × 80,705,433.42
  4. Step 4: Simplify right side
    253,218,267.90x = 30,653,563,193,026,244
  5. Step 5: Solve for x
    x = 30,653,563,193,026,244/253,218,267.90
  6. Step 6: Final answer
    x = 121,055,891.61

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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.