Home / 126,992,091.95-190,507,066.40-45,104,090.57

Finding the Fourth Proportional to 126,992,091.95, 190,507,066.40 and 45,104,090.57

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Solution

The fourth proportional to 126,992,091.95, 190,507,066.40 and 45,104,090.57 is: 67,662,858.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,992,091.95 : 190,507,066.40 = 45,104,090.57 : x
  2. Step 2: Convert to fraction form
    126,992,091.95/190,507,066.40 = 45,104,090.57/x
  3. Step 3: Cross multiply
    126,992,091.95x = 190,507,066.40 × 45,104,090.57
  4. Step 4: Simplify right side
    126,992,091.95x = 8,592,647,976,290,828
  5. Step 5: Solve for x
    x = 8,592,647,976,290,828/126,992,091.95
  6. Step 6: Final answer
    x = 67,662,858.72

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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.