Home / 128,406,608.24-192,644,663.64-91,565,042.22

Finding the Fourth Proportional to 128,406,608.24, 192,644,663.64 and 91,565,042.22

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Solution

The fourth proportional to 128,406,608.24, 192,644,663.64 and 91,565,042.22 is: 137,372,344.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,406,608.24 : 192,644,663.64 = 91,565,042.22 : x
  2. Step 2: Convert to fraction form
    128,406,608.24/192,644,663.64 = 91,565,042.22/x
  3. Step 3: Cross multiply
    128,406,608.24x = 192,644,663.64 × 91,565,042.22
  4. Step 4: Simplify right side
    128,406,608.24x = 17,639,516,760,135,908
  5. Step 5: Solve for x
    x = 17,639,516,760,135,908/128,406,608.24
  6. Step 6: Final answer
    x = 137,372,344.01

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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.