Home / 86,920,128,034.20-130,380,192,051.30-31,085,661,115.80

Finding the Fourth Proportional to 86,920,128,034.20, 130,380,192,051.30 and 31,085,661,115.80

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Solution

The fourth proportional to 86,920,128,034.20, 130,380,192,051.30 and 31,085,661,115.80 is: 46,628,491,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,920,128,034.20 : 130,380,192,051.30 = 31,085,661,115.80 : x
  2. Step 2: Convert to fraction form
    86,920,128,034.20/130,380,192,051.30 = 31,085,661,115.80/x
  3. Step 3: Cross multiply
    86,920,128,034.20x = 130,380,192,051.30 × 31,085,661,115.80
  4. Step 4: Simplify right side
    86,920,128,034.20x = 4,052,954,466,319,632,695,296
  5. Step 5: Solve for x
    x = 4,052,954,466,319,632,695,296/86,920,128,034.20
  6. Step 6: Final answer
    x = 46,628,491,673.70

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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.