Home / 207,259,346.40-311,088,085.20-105,138,693.60

Finding the Fourth Proportional to 207,259,346.40, 311,088,085.20 and 105,138,693.60

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Solution

The fourth proportional to 207,259,346.40, 311,088,085.20 and 105,138,693.60 is: 157,809,022.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,259,346.40 : 311,088,085.20 = 105,138,693.60 : x
  2. Step 2: Convert to fraction form
    207,259,346.40/311,088,085.20 = 105,138,693.60/x
  3. Step 3: Cross multiply
    207,259,346.40x = 311,088,085.20 × 105,138,693.60
  4. Step 4: Simplify right side
    207,259,346.40x = 32,707,394,872,453,492
  5. Step 5: Solve for x
    x = 32,707,394,872,453,492/207,259,346.40
  6. Step 6: Final answer
    x = 157,809,022.56

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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.