Home / 371,388,984.30-512,521,442.55-204,143,505.30

Finding the Fourth Proportional to 371,388,984.30, 512,521,442.55 and 204,143,505.30

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Solution

The fourth proportional to 371,388,984.30, 512,521,442.55 and 204,143,505.30 is: 281,720,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,388,984.30 : 512,521,442.55 = 204,143,505.30 : x
  2. Step 2: Convert to fraction form
    371,388,984.30/512,521,442.55 = 204,143,505.30/x
  3. Step 3: Cross multiply
    371,388,984.30x = 512,521,442.55 × 204,143,505.30
  4. Step 4: Simplify right side
    371,388,984.30x = 104,627,923,823,569,584
  5. Step 5: Solve for x
    x = 104,627,923,823,569,584/371,388,984.30
  6. Step 6: Final answer
    x = 281,720,590.13

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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.