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Finding the Fourth Proportional to 549,504,010.35, 824,256,015.53 and 388,260,874.35

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Solution

The fourth proportional to 549,504,010.35, 824,256,015.53 and 388,260,874.35 is: 582,391,311.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,504,010.35 : 824,256,015.53 = 388,260,874.35 : x
  2. Step 2: Convert to fraction form
    549,504,010.35/824,256,015.53 = 388,260,874.35/x
  3. Step 3: Cross multiply
    549,504,010.35x = 824,256,015.53 × 388,260,874.35
  4. Step 4: Simplify right side
    549,504,010.35x = 320,026,361,275,983,680
  5. Step 5: Solve for x
    x = 320,026,361,275,983,680/549,504,010.35
  6. Step 6: Final answer
    x = 582,391,311.53

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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.