Home / 126,636,811.92-189,987,967.83-74,158,801.96

Finding the Fourth Proportional to 126,636,811.92, 189,987,967.83 and 74,158,801.96

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Solution

The fourth proportional to 126,636,811.92, 189,987,967.83 and 74,158,801.96 is: 111,257,381.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,636,811.92 : 189,987,967.83 = 74,158,801.96 : x
  2. Step 2: Convert to fraction form
    126,636,811.92/189,987,967.83 = 74,158,801.96/x
  3. Step 3: Cross multiply
    126,636,811.92x = 189,987,967.83 × 74,158,801.96
  4. Step 4: Simplify right side
    126,636,811.92x = 14,089,280,080,612,852
  5. Step 5: Solve for x
    x = 14,089,280,080,612,852/126,636,811.92
  6. Step 6: Final answer
    x = 111,257,381.38

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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.