Home / 126,264,315.80-189,396,473.70-72,367,304.60

Finding the Fourth Proportional to 126,264,315.80, 189,396,473.70 and 72,367,304.60

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Solution

The fourth proportional to 126,264,315.80, 189,396,473.70 and 72,367,304.60 is: 108,550,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,264,315.80 : 189,396,473.70 = 72,367,304.60 : x
  2. Step 2: Convert to fraction form
    126,264,315.80/189,396,473.70 = 72,367,304.60/x
  3. Step 3: Cross multiply
    126,264,315.80x = 189,396,473.70 × 72,367,304.60
  4. Step 4: Simplify right side
    126,264,315.80x = 13,706,112,302,413,788
  5. Step 5: Solve for x
    x = 13,706,112,302,413,788/126,264,315.80
  6. Step 6: Final answer
    x = 108,550,956.90

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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.