Home / 393,677,658.62-543,264,643.41-217,461,861.38

Finding the Fourth Proportional to 393,677,658.62, 543,264,643.41 and 217,461,861.38

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Solution

The fourth proportional to 393,677,658.62, 543,264,643.41 and 217,461,861.38 is: 300,091,554.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,677,658.62 : 543,264,643.41 = 217,461,861.38 : x
  2. Step 2: Convert to fraction form
    393,677,658.62/543,264,643.41 = 217,461,861.38/x
  3. Step 3: Cross multiply
    393,677,658.62x = 543,264,643.41 × 217,461,861.38
  4. Step 4: Simplify right side
    393,677,658.62x = 118,139,340,577,880,544
  5. Step 5: Solve for x
    x = 118,139,340,577,880,544/393,677,658.62
  6. Step 6: Final answer
    x = 300,091,554.58

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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.