Home / 81,395,712,093.80-122,093,568,140.70-68,335,018,077.80

Finding the Fourth Proportional to 81,395,712,093.80, 122,093,568,140.70 and 68,335,018,077.80

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Solution

The fourth proportional to 81,395,712,093.80, 122,093,568,140.70 and 68,335,018,077.80 is: 102,502,527,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,395,712,093.80 : 122,093,568,140.70 = 68,335,018,077.80 : x
  2. Step 2: Convert to fraction form
    81,395,712,093.80/122,093,568,140.70 = 68,335,018,077.80/x
  3. Step 3: Cross multiply
    81,395,712,093.80x = 122,093,568,140.70 × 68,335,018,077.80
  4. Step 4: Simplify right side
    81,395,712,093.80x = 8,343,266,186,077,840,343,040
  5. Step 5: Solve for x
    x = 8,343,266,186,077,840,343,040/81,395,712,093.80
  6. Step 6: Final answer
    x = 102,502,527,116.70

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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.