Home / 120,344,163.88-180,114,019.94-68,514,852.80

Finding the Fourth Proportional to 120,344,163.88, 180,114,019.94 and 68,514,852.80

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Solution

The fourth proportional to 120,344,163.88, 180,114,019.94 and 68,514,852.80 is: 102,543,282.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,344,163.88 : 180,114,019.94 = 68,514,852.80 : x
  2. Step 2: Convert to fraction form
    120,344,163.88/180,114,019.94 = 68,514,852.80/x
  3. Step 3: Cross multiply
    120,344,163.88x = 180,114,019.94 × 68,514,852.80
  4. Step 4: Simplify right side
    120,344,163.88x = 12,340,485,563,405,364
  5. Step 5: Solve for x
    x = 12,340,485,563,405,364/120,344,163.88
  6. Step 6: Final answer
    x = 102,543,282.25

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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.