Home / 126,009,723.20-189,014,584.80-100,500,555.20

Finding the Fourth Proportional to 126,009,723.20, 189,014,584.80 and 100,500,555.20

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Solution

The fourth proportional to 126,009,723.20, 189,014,584.80 and 100,500,555.20 is: 150,750,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,009,723.20 : 189,014,584.80 = 100,500,555.20 : x
  2. Step 2: Convert to fraction form
    126,009,723.20/189,014,584.80 = 100,500,555.20/x
  3. Step 3: Cross multiply
    126,009,723.20x = 189,014,584.80 × 100,500,555.20
  4. Step 4: Simplify right side
    126,009,723.20x = 18,996,070,713,297,484
  5. Step 5: Solve for x
    x = 18,996,070,713,297,484/126,009,723.20
  6. Step 6: Final answer
    x = 150,750,832.80

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1.5x scale

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.