Home / 126,926,830.80-190,390,246.20-31,188,718.80

Finding the Fourth Proportional to 126,926,830.80, 190,390,246.20 and 31,188,718.80

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Solution

The fourth proportional to 126,926,830.80, 190,390,246.20 and 31,188,718.80 is: 46,783,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,926,830.80 : 190,390,246.20 = 31,188,718.80 : x
  2. Step 2: Convert to fraction form
    126,926,830.80/190,390,246.20 = 31,188,718.80/x
  3. Step 3: Cross multiply
    126,926,830.80x = 190,390,246.20 × 31,188,718.80
  4. Step 4: Simplify right side
    126,926,830.80x = 5,938,027,850,994,568
  5. Step 5: Solve for x
    x = 5,938,027,850,994,568/126,926,830.80
  6. Step 6: Final answer
    x = 46,783,078.20

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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.