Home / 127,413,186.80-190,998,707.88-81,225,418.64

Finding the Fourth Proportional to 127,413,186.80, 190,998,707.88 and 81,225,418.64

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Solution

The fourth proportional to 127,413,186.80, 190,998,707.88 and 81,225,418.64 is: 121,760,944.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,413,186.80 : 190,998,707.88 = 81,225,418.64 : x
  2. Step 2: Convert to fraction form
    127,413,186.80/190,998,707.88 = 81,225,418.64/x
  3. Step 3: Cross multiply
    127,413,186.80x = 190,998,707.88 × 81,225,418.64
  4. Step 4: Simplify right side
    127,413,186.80x = 15,513,950,007,252,066
  5. Step 5: Solve for x
    x = 15,513,950,007,252,066/127,413,186.80
  6. Step 6: Final answer
    x = 121,760,944.82

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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.