Home / 220,174,564.05-330,261,846.08-66,820,374.45

Finding the Fourth Proportional to 220,174,564.05, 330,261,846.08 and 66,820,374.45

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Solution

The fourth proportional to 220,174,564.05, 330,261,846.08 and 66,820,374.45 is: 100,230,561.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,174,564.05 : 330,261,846.08 = 66,820,374.45 : x
  2. Step 2: Convert to fraction form
    220,174,564.05/330,261,846.08 = 66,820,374.45/x
  3. Step 3: Cross multiply
    220,174,564.05x = 330,261,846.08 × 66,820,374.45
  4. Step 4: Simplify right side
    220,174,564.05x = 22,068,220,221,279,764
  5. Step 5: Solve for x
    x = 22,068,220,221,279,764/220,174,564.05
  6. Step 6: Final answer
    x = 100,230,561.68

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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.