Home / 491,618,723.70-737,428,085.55-128,113,079.70

Finding the Fourth Proportional to 491,618,723.70, 737,428,085.55 and 128,113,079.70

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Solution

The fourth proportional to 491,618,723.70, 737,428,085.55 and 128,113,079.70 is: 192,169,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,618,723.70 : 737,428,085.55 = 128,113,079.70 : x
  2. Step 2: Convert to fraction form
    491,618,723.70/737,428,085.55 = 128,113,079.70/x
  3. Step 3: Cross multiply
    491,618,723.70x = 737,428,085.55 × 128,113,079.70
  4. Step 4: Simplify right side
    491,618,723.70x = 94,474,183,097,085,568
  5. Step 5: Solve for x
    x = 94,474,183,097,085,568/491,618,723.70
  6. Step 6: Final answer
    x = 192,169,619.55

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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.