Home / 855,985,579.35-1,283,573,615.60-331,600,289.09

Finding the Fourth Proportional to 855,985,579.35, 1,283,573,615.60 and 331,600,289.09

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Solution

The fourth proportional to 855,985,579.35, 1,283,573,615.60 and 331,600,289.09 is: 497,243,636.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,985,579.35 : 1,283,573,615.60 = 331,600,289.09 : x
  2. Step 2: Convert to fraction form
    855,985,579.35/1,283,573,615.60 = 331,600,289.09/x
  3. Step 3: Cross multiply
    855,985,579.35x = 1,283,573,615.60 × 331,600,289.09
  4. Step 4: Simplify right side
    855,985,579.35x = 425,633,381,993,180,672
  5. Step 5: Solve for x
    x = 425,633,381,993,180,672/855,985,579.35
  6. Step 6: Final answer
    x = 497,243,636.18

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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.