Home / 220,087,253.88-303,721,072.92-120,978,158.40

Finding the Fourth Proportional to 220,087,253.88, 303,721,072.92 and 120,978,158.40

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Solution

The fourth proportional to 220,087,253.88, 303,721,072.92 and 120,978,158.40 is: 166,950,222.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,087,253.88 : 303,721,072.92 = 120,978,158.40 : x
  2. Step 2: Convert to fraction form
    220,087,253.88/303,721,072.92 = 120,978,158.40/x
  3. Step 3: Cross multiply
    220,087,253.88x = 303,721,072.92 × 120,978,158.40
  4. Step 4: Simplify right side
    220,087,253.88x = 36,743,616,069,133,712
  5. Step 5: Solve for x
    x = 36,743,616,069,133,712/220,087,253.88
  6. Step 6: Final answer
    x = 166,950,222.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.