Home / 390,256,219.26-538,573,313.79-214,060,609.62

Finding the Fourth Proportional to 390,256,219.26, 538,573,313.79 and 214,060,609.62

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Solution

The fourth proportional to 390,256,219.26, 538,573,313.79 and 214,060,609.62 is: 295,414,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,256,219.26 : 538,573,313.79 = 214,060,609.62 : x
  2. Step 2: Convert to fraction form
    390,256,219.26/538,573,313.79 = 214,060,609.62/x
  3. Step 3: Cross multiply
    390,256,219.26x = 538,573,313.79 × 214,060,609.62
  4. Step 4: Simplify right side
    390,256,219.26x = 115,287,331,874,950,944
  5. Step 5: Solve for x
    x = 115,287,331,874,950,944/390,256,219.26
  6. Step 6: Final answer
    x = 295,414,464.10

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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.