Home / 126,120,282.48-189,089,629.98-77,497,677.78

Finding the Fourth Proportional to 126,120,282.48, 189,089,629.98 and 77,497,677.78

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Solution

The fourth proportional to 126,120,282.48, 189,089,629.98 and 77,497,677.78 is: 116,190,726.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,120,282.48 : 189,089,629.98 = 77,497,677.78 : x
  2. Step 2: Convert to fraction form
    126,120,282.48/189,089,629.98 = 77,497,677.78/x
  3. Step 3: Cross multiply
    126,120,282.48x = 189,089,629.98 × 77,497,677.78
  4. Step 4: Simplify right side
    126,120,282.48x = 14,654,007,215,729,468
  5. Step 5: Solve for x
    x = 14,654,007,215,729,468/126,120,282.48
  6. Step 6: Final answer
    x = 116,190,726.25

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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.