Home / 209,113,670.20-313,670,505.30-72,753,734.20

Finding the Fourth Proportional to 209,113,670.20, 313,670,505.30 and 72,753,734.20

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Solution

The fourth proportional to 209,113,670.20, 313,670,505.30 and 72,753,734.20 is: 109,130,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,113,670.20 : 313,670,505.30 = 72,753,734.20 : x
  2. Step 2: Convert to fraction form
    209,113,670.20/313,670,505.30 = 72,753,734.20/x
  3. Step 3: Cross multiply
    209,113,670.20x = 313,670,505.30 × 72,753,734.20
  4. Step 4: Simplify right side
    209,113,670.20x = 22,820,700,568,975,892
  5. Step 5: Solve for x
    x = 22,820,700,568,975,892/209,113,670.20
  6. Step 6: Final answer
    x = 109,130,601.30

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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.