Home / 128,789,463.96-193,159,549.62-50,005,973.88

Finding the Fourth Proportional to 128,789,463.96, 193,159,549.62 and 50,005,973.88

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Solution

The fourth proportional to 128,789,463.96, 193,159,549.62 and 50,005,973.88 is: 74,999,391.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,789,463.96 : 193,159,549.62 = 50,005,973.88 : x
  2. Step 2: Convert to fraction form
    128,789,463.96/193,159,549.62 = 50,005,973.88/x
  3. Step 3: Cross multiply
    128,789,463.96x = 193,159,549.62 × 50,005,973.88
  4. Step 4: Simplify right side
    128,789,463.96x = 9,659,131,392,970,284
  5. Step 5: Solve for x
    x = 9,659,131,392,970,284/128,789,463.96
  6. Step 6: Final answer
    x = 74,999,391.22

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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.