Home / 491,713,145.40-737,607,042.90-146,639,839.80

Finding the Fourth Proportional to 491,713,145.40, 737,607,042.90 and 146,639,839.80

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Solution

The fourth proportional to 491,713,145.40, 737,607,042.90 and 146,639,839.80 is: 219,970,890.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,713,145.40 : 737,607,042.90 = 146,639,839.80 : x
  2. Step 2: Convert to fraction form
    491,713,145.40/737,607,042.90 = 146,639,839.80/x
  3. Step 3: Cross multiply
    491,713,145.40x = 737,607,042.90 × 146,639,839.80
  4. Step 4: Simplify right side
    491,713,145.40x = 108,162,578,606,207,728
  5. Step 5: Solve for x
    x = 108,162,578,606,207,728/491,713,145.40
  6. Step 6: Final answer
    x = 219,970,890.79

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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.