Home / 81,395,712,124.80-122,093,568,187.20-68,335,018,108.80

Finding the Fourth Proportional to 81,395,712,124.80, 122,093,568,187.20 and 68,335,018,108.80

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Solution

The fourth proportional to 81,395,712,124.80, 122,093,568,187.20 and 68,335,018,108.80 is: 102,502,527,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,395,712,124.80 : 122,093,568,187.20 = 68,335,018,108.80 : x
  2. Step 2: Convert to fraction form
    81,395,712,124.80/122,093,568,187.20 = 68,335,018,108.80/x
  3. Step 3: Cross multiply
    81,395,712,124.80x = 122,093,568,187.20 × 68,335,018,108.80
  4. Step 4: Simplify right side
    81,395,712,124.80x = 8,343,266,193,040,319,971,328
  5. Step 5: Solve for x
    x = 8,343,266,193,040,319,971,328/81,395,712,124.80
  6. Step 6: Final answer
    x = 102,502,527,163.20

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Double scale
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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.