Home / 319,304,053.20-479,236,015.80-189,749,672.40

Finding the Fourth Proportional to 319,304,053.20, 479,236,015.80 and 189,749,672.40

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Solution

The fourth proportional to 319,304,053.20, 479,236,015.80 and 189,749,672.40 is: 284,790,863.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,304,053.20 : 479,236,015.80 = 189,749,672.40 : x
  2. Step 2: Convert to fraction form
    319,304,053.20/479,236,015.80 = 189,749,672.40/x
  3. Step 3: Cross multiply
    319,304,053.20x = 479,236,015.80 × 189,749,672.40
  4. Step 4: Simplify right side
    319,304,053.20x = 90,934,877,000,331,232
  5. Step 5: Solve for x
    x = 90,934,877,000,331,232/319,304,053.20
  6. Step 6: Final answer
    x = 284,790,863.41

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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.