Home / 7,080,815,420.38-9,771,269,113.95-3,908,931,229.42

Finding the Fourth Proportional to 7,080,815,420.38, 9,771,269,113.95 and 3,908,931,229.42

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Solution

The fourth proportional to 7,080,815,420.38, 9,771,269,113.95 and 3,908,931,229.42 is: 5,394,183,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080,815,420.38 : 9,771,269,113.95 = 3,908,931,229.42 : x
  2. Step 2: Convert to fraction form
    7,080,815,420.38/9,771,269,113.95 = 3,908,931,229.42/x
  3. Step 3: Cross multiply
    7,080,815,420.38x = 9,771,269,113.95 × 3,908,931,229.42
  4. Step 4: Simplify right side
    7,080,815,420.38x = 38,195,218,990,586,249,216
  5. Step 5: Solve for x
    x = 38,195,218,990,586,249,216/7,080,815,420.38
  6. Step 6: Final answer
    x = 5,394,183,681.25

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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.