Home / 386,581,097.22-533,481,993.09-212,740,841.22

Finding the Fourth Proportional to 386,581,097.22, 533,481,993.09 and 212,740,841.22

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Solution

The fourth proportional to 386,581,097.22, 533,481,993.09 and 212,740,841.22 is: 293,582,404.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,581,097.22 : 533,481,993.09 = 212,740,841.22 : x
  2. Step 2: Convert to fraction form
    386,581,097.22/533,481,993.09 = 212,740,841.22/x
  3. Step 3: Cross multiply
    386,581,097.22x = 533,481,993.09 × 212,740,841.22
  4. Step 4: Simplify right side
    386,581,097.22x = 113,493,407,985,688,816
  5. Step 5: Solve for x
    x = 113,493,407,985,688,816/386,581,097.22
  6. Step 6: Final answer
    x = 293,582,404.32

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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.