Home / 126,580,968.88-189,808,641.36-40,308,135.28

Finding the Fourth Proportional to 126,580,968.88, 189,808,641.36 and 40,308,135.28

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Solution

The fourth proportional to 126,580,968.88, 189,808,641.36 and 40,308,135.28 is: 60,442,201.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,580,968.88 : 189,808,641.36 = 40,308,135.28 : x
  2. Step 2: Convert to fraction form
    126,580,968.88/189,808,641.36 = 40,308,135.28/x
  3. Step 3: Cross multiply
    126,580,968.88x = 189,808,641.36 × 40,308,135.28
  4. Step 4: Simplify right side
    126,580,968.88x = 7,650,832,393,251,884
  5. Step 5: Solve for x
    x = 7,650,832,393,251,884/126,580,968.88
  6. Step 6: Final answer
    x = 60,442,201.23

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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.