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Finding the Fourth Proportional to 404,891,446.32, 607,081,961.16 and 343,502,103.60

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Solution

The fourth proportional to 404,891,446.32, 607,081,961.16 and 343,502,103.60 is: 515,036,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,891,446.32 : 607,081,961.16 = 343,502,103.60 : x
  2. Step 2: Convert to fraction form
    404,891,446.32/607,081,961.16 = 343,502,103.60/x
  3. Step 3: Cross multiply
    404,891,446.32x = 607,081,961.16 × 343,502,103.60
  4. Step 4: Simplify right side
    404,891,446.32x = 208,533,930,716,073,504
  5. Step 5: Solve for x
    x = 208,533,930,716,073,504/404,891,446.32
  6. Step 6: Final answer
    x = 515,036,641.58

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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.