Home / 218,901,529.80-328,135,718.70-103,683,558.60

Finding the Fourth Proportional to 218,901,529.80, 328,135,718.70 and 103,683,558.60

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Solution

The fourth proportional to 218,901,529.80, 328,135,718.70 and 103,683,558.60 is: 155,422,755.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,901,529.80 : 328,135,718.70 = 103,683,558.60 : x
  2. Step 2: Convert to fraction form
    218,901,529.80/328,135,718.70 = 103,683,558.60/x
  3. Step 3: Cross multiply
    218,901,529.80x = 328,135,718.70 × 103,683,558.60
  4. Step 4: Simplify right side
    218,901,529.80x = 34,022,279,018,584,564
  5. Step 5: Solve for x
    x = 34,022,279,018,584,564/218,901,529.80
  6. Step 6: Final answer
    x = 155,422,755.84

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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.