Home / 510,208,299.15-704,109,749.79-287,204,370.63

Finding the Fourth Proportional to 510,208,299.15, 704,109,749.79 and 287,204,370.63

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Solution

The fourth proportional to 510,208,299.15, 704,109,749.79 and 287,204,370.63 is: 396,354,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,208,299.15 : 704,109,749.79 = 287,204,370.63 : x
  2. Step 2: Convert to fraction form
    510,208,299.15/704,109,749.79 = 287,204,370.63/x
  3. Step 3: Cross multiply
    510,208,299.15x = 704,109,749.79 × 287,204,370.63
  4. Step 4: Simplify right side
    510,208,299.15x = 202,223,397,542,883,712
  5. Step 5: Solve for x
    x = 202,223,397,542,883,712/510,208,299.15
  6. Step 6: Final answer
    x = 396,354,582.78

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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.