Home / 289,471,783.78-433,851,942.32-133,815,039.94

Finding the Fourth Proportional to 289,471,783.78, 433,851,942.32 and 133,815,039.94

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Solution

The fourth proportional to 289,471,783.78, 433,851,942.32 and 133,815,039.94 is: 200,558,113.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,471,783.78 : 433,851,942.32 = 133,815,039.94 : x
  2. Step 2: Convert to fraction form
    289,471,783.78/433,851,942.32 = 133,815,039.94/x
  3. Step 3: Cross multiply
    289,471,783.78x = 433,851,942.32 × 133,815,039.94
  4. Step 4: Simplify right side
    289,471,783.78x = 58,055,914,989,597,376
  5. Step 5: Solve for x
    x = 58,055,914,989,597,376/289,471,783.78
  6. Step 6: Final answer
    x = 200,558,113.93

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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.