Home / 331,915,145.70-497,872,718.55-178,860,137.70

Finding the Fourth Proportional to 331,915,145.70, 497,872,718.55 and 178,860,137.70

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Solution

The fourth proportional to 331,915,145.70, 497,872,718.55 and 178,860,137.70 is: 268,290,206.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,915,145.70 : 497,872,718.55 = 178,860,137.70 : x
  2. Step 2: Convert to fraction form
    331,915,145.70/497,872,718.55 = 178,860,137.70/x
  3. Step 3: Cross multiply
    331,915,145.70x = 497,872,718.55 × 178,860,137.70
  4. Step 4: Simplify right side
    331,915,145.70x = 89,049,582,996,926,336
  5. Step 5: Solve for x
    x = 89,049,582,996,926,336/331,915,145.70
  6. Step 6: Final answer
    x = 268,290,206.55

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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.