Home / 7,080,815,419.38-9,771,269,112.57-3,908,931,228.42

Finding the Fourth Proportional to 7,080,815,419.38, 9,771,269,112.57 and 3,908,931,228.42

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Solution

The fourth proportional to 7,080,815,419.38, 9,771,269,112.57 and 3,908,931,228.42 is: 5,394,183,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080,815,419.38 : 9,771,269,112.57 = 3,908,931,228.42 : x
  2. Step 2: Convert to fraction form
    7,080,815,419.38/9,771,269,112.57 = 3,908,931,228.42/x
  3. Step 3: Cross multiply
    7,080,815,419.38x = 9,771,269,112.57 × 3,908,931,228.42
  4. Step 4: Simplify right side
    7,080,815,419.38x = 38,195,218,975,420,653,568
  5. Step 5: Solve for x
    x = 38,195,218,975,420,653,568/7,080,815,419.38
  6. Step 6: Final answer
    x = 5,394,183,679.87

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Double scale
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1.5x scale

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.