Home / 207,259,272.40-311,087,974.20-105,138,619.60

Finding the Fourth Proportional to 207,259,272.40, 311,087,974.20 and 105,138,619.60

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Solution

The fourth proportional to 207,259,272.40, 311,087,974.20 and 105,138,619.60 is: 157,808,911.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,259,272.40 : 311,087,974.20 = 105,138,619.60 : x
  2. Step 2: Convert to fraction form
    207,259,272.40/311,087,974.20 = 105,138,619.60/x
  3. Step 3: Cross multiply
    207,259,272.40x = 311,087,974.20 × 105,138,619.60
  4. Step 4: Simplify right side
    207,259,272.40x = 32,707,360,181,548,412
  5. Step 5: Solve for x
    x = 32,707,360,181,548,412/207,259,272.40
  6. Step 6: Final answer
    x = 157,808,911.53

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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.