Home / 455,327,711.52-682,889,346.60-209,448,200.40

Finding the Fourth Proportional to 455,327,711.52, 682,889,346.60 and 209,448,200.40

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Solution

The fourth proportional to 455,327,711.52, 682,889,346.60 and 209,448,200.40 is: 314,125,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,327,711.52 : 682,889,346.60 = 209,448,200.40 : x
  2. Step 2: Convert to fraction form
    455,327,711.52/682,889,346.60 = 209,448,200.40/x
  3. Step 3: Cross multiply
    455,327,711.52x = 682,889,346.60 × 209,448,200.40
  4. Step 4: Simplify right side
    455,327,711.52x = 143,029,944,717,701,872
  5. Step 5: Solve for x
    x = 143,029,944,717,701,872/455,327,711.52
  6. Step 6: Final answer
    x = 314,125,279.66

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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.