Home / 303,218,911.18-418,442,097.12-163,989,672.80

Finding the Fourth Proportional to 303,218,911.18, 418,442,097.12 and 163,989,672.80

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Solution

The fourth proportional to 303,218,911.18, 418,442,097.12 and 163,989,672.80 is: 226,305,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,218,911.18 : 418,442,097.12 = 163,989,672.80 : x
  2. Step 2: Convert to fraction form
    303,218,911.18/418,442,097.12 = 163,989,672.80/x
  3. Step 3: Cross multiply
    303,218,911.18x = 418,442,097.12 × 163,989,672.80
  4. Step 4: Simplify right side
    303,218,911.18x = 68,620,182,592,454,632
  5. Step 5: Solve for x
    x = 68,620,182,592,454,632/303,218,911.18
  6. Step 6: Final answer
    x = 226,305,748.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.