Home / 479,784,576.45-662,147,096.73-291,569,431.89

Finding the Fourth Proportional to 479,784,576.45, 662,147,096.73 and 291,569,431.89

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Solution

The fourth proportional to 479,784,576.45, 662,147,096.73 and 291,569,431.89 is: 402,392,786.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,784,576.45 : 662,147,096.73 = 291,569,431.89 : x
  2. Step 2: Convert to fraction form
    479,784,576.45/662,147,096.73 = 291,569,431.89/x
  3. Step 3: Cross multiply
    479,784,576.45x = 662,147,096.73 × 291,569,431.89
  4. Step 4: Simplify right side
    479,784,576.45x = 193,061,852,821,178,976
  5. Step 5: Solve for x
    x = 193,061,852,821,178,976/479,784,576.45
  6. Step 6: Final answer
    x = 402,392,786.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.