Home / 128,087,998,310.79-192,093,315,204.39-38,527,216,671.69

Finding the Fourth Proportional to 128,087,998,310.79, 192,093,315,204.39 and 38,527,216,671.69

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Solution

The fourth proportional to 128,087,998,310.79, 192,093,315,204.39 and 38,527,216,671.69 is: 57,779,189,882.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,087,998,310.79 : 192,093,315,204.39 = 38,527,216,671.69 : x
  2. Step 2: Convert to fraction form
    128,087,998,310.79/192,093,315,204.39 = 38,527,216,671.69/x
  3. Step 3: Cross multiply
    128,087,998,310.79x = 192,093,315,204.39 × 38,527,216,671.69
  4. Step 4: Simplify right side
    128,087,998,310.79x = 7,400,820,776,062,777,556,992
  5. Step 5: Solve for x
    x = 7,400,820,776,062,777,556,992/128,087,998,310.79
  6. Step 6: Final answer
    x = 57,779,189,882.46

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1.5x scale

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.