Home / 57,019,746,240.96-78,687,336,007.76-30,948,120,915.65

Finding the Fourth Proportional to 57,019,746,240.96, 78,687,336,007.76 and 30,948,120,915.65

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Solution

The fourth proportional to 57,019,746,240.96, 78,687,336,007.76 and 30,948,120,915.65 is: 42,708,453,647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,019,746,240.96 : 78,687,336,007.76 = 30,948,120,915.65 : x
  2. Step 2: Convert to fraction form
    57,019,746,240.96/78,687,336,007.76 = 30,948,120,915.65/x
  3. Step 3: Cross multiply
    57,019,746,240.96x = 78,687,336,007.76 × 30,948,120,915.65
  4. Step 4: Simplify right side
    57,019,746,240.96x = 2,435,225,189,298,584,682,496
  5. Step 5: Solve for x
    x = 2,435,225,189,298,584,682,496/57,019,746,240.96
  6. Step 6: Final answer
    x = 42,708,453,647.05

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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.