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Finding the Fourth Proportional to 874,584,007.20, 1,312,379,895.60 and 329,716,576.80

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Solution

The fourth proportional to 874,584,007.20, 1,312,379,895.60 and 329,716,576.80 is: 494,764,828.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,584,007.20 : 1,312,379,895.60 = 329,716,576.80 : x
  2. Step 2: Convert to fraction form
    874,584,007.20/1,312,379,895.60 = 329,716,576.80/x
  3. Step 3: Cross multiply
    874,584,007.20x = 1,312,379,895.60 × 329,716,576.80
  4. Step 4: Simplify right side
    874,584,007.20x = 432,713,406,638,373,376
  5. Step 5: Solve for x
    x = 432,713,406,638,373,376/874,584,007.20
  6. Step 6: Final answer
    x = 494,764,828.85

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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.