Home / 257,090,599.21-385,585,684.10-82,166,711.04

Finding the Fourth Proportional to 257,090,599.21, 385,585,684.10 and 82,166,711.04

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Solution

The fourth proportional to 257,090,599.21, 385,585,684.10 and 82,166,711.04 is: 123,234,017.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,090,599.21 : 385,585,684.10 = 82,166,711.04 : x
  2. Step 2: Convert to fraction form
    257,090,599.21/385,585,684.10 = 82,166,711.04/x
  3. Step 3: Cross multiply
    257,090,599.21x = 385,585,684.10 × 82,166,711.04
  4. Step 4: Simplify right side
    257,090,599.21x = 31,682,307,484,266,660
  5. Step 5: Solve for x
    x = 31,682,307,484,266,660/257,090,599.21
  6. Step 6: Final answer
    x = 123,234,017.82

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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.