Home / 126,014,701.80-189,022,052.70-115,244,164.20

Finding the Fourth Proportional to 126,014,701.80, 189,022,052.70 and 115,244,164.20

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Solution

The fourth proportional to 126,014,701.80, 189,022,052.70 and 115,244,164.20 is: 172,866,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,014,701.80 : 189,022,052.70 = 115,244,164.20 : x
  2. Step 2: Convert to fraction form
    126,014,701.80/189,022,052.70 = 115,244,164.20/x
  3. Step 3: Cross multiply
    126,014,701.80x = 189,022,052.70 × 115,244,164.20
  4. Step 4: Simplify right side
    126,014,701.80x = 21,783,688,478,779,852
  5. Step 5: Solve for x
    x = 21,783,688,478,779,852/126,014,701.80
  6. Step 6: Final answer
    x = 172,866,246.30

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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.