Home / 126,369,820.80-189,554,731.20-109,363,708.80

Finding the Fourth Proportional to 126,369,820.80, 189,554,731.20 and 109,363,708.80

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Solution

The fourth proportional to 126,369,820.80, 189,554,731.20 and 109,363,708.80 is: 164,045,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,369,820.80 : 189,554,731.20 = 109,363,708.80 : x
  2. Step 2: Convert to fraction form
    126,369,820.80/189,554,731.20 = 109,363,708.80/x
  3. Step 3: Cross multiply
    126,369,820.80x = 189,554,731.20 × 109,363,708.80
  4. Step 4: Simplify right side
    126,369,820.80x = 20,730,408,424,619,072
  5. Step 5: Solve for x
    x = 20,730,408,424,619,072/126,369,820.80
  6. Step 6: Final answer
    x = 164,045,563.20

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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.