Home / 126,264,312.80-189,396,469.20-72,367,301.60

Finding the Fourth Proportional to 126,264,312.80, 189,396,469.20 and 72,367,301.60

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Solution

The fourth proportional to 126,264,312.80, 189,396,469.20 and 72,367,301.60 is: 108,550,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,264,312.80 : 189,396,469.20 = 72,367,301.60 : x
  2. Step 2: Convert to fraction form
    126,264,312.80/189,396,469.20 = 72,367,301.60/x
  3. Step 3: Cross multiply
    126,264,312.80x = 189,396,469.20 × 72,367,301.60
  4. Step 4: Simplify right side
    126,264,312.80x = 13,706,111,408,571,508
  5. Step 5: Solve for x
    x = 13,706,111,408,571,508/126,264,312.80
  6. Step 6: Final answer
    x = 108,550,952.40

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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.