Home / 128,107,832.63-192,220,305.89-69,728,054.63

Finding the Fourth Proportional to 128,107,832.63, 192,220,305.89 and 69,728,054.63

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Solution

The fourth proportional to 128,107,832.63, 192,220,305.89 and 69,728,054.63 is: 104,623,954.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,107,832.63 : 192,220,305.89 = 69,728,054.63 : x
  2. Step 2: Convert to fraction form
    128,107,832.63/192,220,305.89 = 69,728,054.63/x
  3. Step 3: Cross multiply
    128,107,832.63x = 192,220,305.89 × 69,728,054.63
  4. Step 4: Simplify right side
    128,107,832.63x = 13,403,147,988,783,488
  5. Step 5: Solve for x
    x = 13,403,147,988,783,488/128,107,832.63
  6. Step 6: Final answer
    x = 104,623,954.01

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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.