Home / 86,920,128,015.70-130,380,192,023.55-31,085,661,097.30

Finding the Fourth Proportional to 86,920,128,015.70, 130,380,192,023.55 and 31,085,661,097.30

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Solution

The fourth proportional to 86,920,128,015.70, 130,380,192,023.55 and 31,085,661,097.30 is: 46,628,491,645.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,920,128,015.70 : 130,380,192,023.55 = 31,085,661,097.30 : x
  2. Step 2: Convert to fraction form
    86,920,128,015.70/130,380,192,023.55 = 31,085,661,097.30/x
  3. Step 3: Cross multiply
    86,920,128,015.70x = 130,380,192,023.55 × 31,085,661,097.30
  4. Step 4: Simplify right side
    86,920,128,015.70x = 4,052,954,463,044,971,790,336
  5. Step 5: Solve for x
    x = 4,052,954,463,044,971,790,336/86,920,128,015.70
  6. Step 6: Final answer
    x = 46,628,491,645.95

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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.