Home / 215,320,820.20-322,596,318.30-131,036,756.20

Finding the Fourth Proportional to 215,320,820.20, 322,596,318.30 and 131,036,756.20

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Solution

The fourth proportional to 215,320,820.20, 322,596,318.30 and 131,036,756.20 is: 196,320,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,320,820.20 : 322,596,318.30 = 131,036,756.20 : x
  2. Step 2: Convert to fraction form
    215,320,820.20/322,596,318.30 = 131,036,756.20/x
  3. Step 3: Cross multiply
    215,320,820.20x = 322,596,318.30 × 131,036,756.20
  4. Step 4: Simplify right side
    215,320,820.20x = 42,271,975,112,094,704
  5. Step 5: Solve for x
    x = 42,271,975,112,094,704/215,320,820.20
  6. Step 6: Final answer
    x = 196,320,890.25

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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.