Home / 30,518,900,007.20-45,780,529,251.41-8,134,531,100.65

Finding the Fourth Proportional to 30,518,900,007.20, 45,780,529,251.41 and 8,134,531,100.65

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Solution

The fourth proportional to 30,518,900,007.20, 45,780,529,251.41 and 8,134,531,100.65 is: 12,202,377,507.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,518,900,007.20 : 45,780,529,251.41 = 8,134,531,100.65 : x
  2. Step 2: Convert to fraction form
    30,518,900,007.20/45,780,529,251.41 = 8,134,531,100.65/x
  3. Step 3: Cross multiply
    30,518,900,007.20x = 45,780,529,251.41 × 8,134,531,100.65
  4. Step 4: Simplify right side
    30,518,900,007.20x = 372,403,138,999,759,339,520
  5. Step 5: Solve for x
    x = 372,403,138,999,759,339,520/30,518,900,007.20
  6. Step 6: Final answer
    x = 12,202,377,507.44

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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.