Home / 411,212,586.08-616,820,979-138,585,715.04

Finding the Fourth Proportional to 411,212,586.08, 616,820,979 and 138,585,715.04

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Solution

The fourth proportional to 411,212,586.08, 616,820,979 and 138,585,715.04 is: 207,879,280.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,212,586.08 : 616,820,979 = 138,585,715.04 : x
  2. Step 2: Convert to fraction form
    411,212,586.08/616,820,979 = 138,585,715.04/x
  3. Step 3: Cross multiply
    411,212,586.08x = 616,820,979 × 138,585,715.04
  4. Step 4: Simplify right side
    411,212,586.08x = 85,482,576,426,387,824
  5. Step 5: Solve for x
    x = 85,482,576,426,387,824/411,212,586.08
  6. Step 6: Final answer
    x = 207,879,280.26

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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.