Home / 355,423,650.48-490,481,010.54-198,790,383.96

Finding the Fourth Proportional to 355,423,650.48, 490,481,010.54 and 198,790,383.96

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Solution

The fourth proportional to 355,423,650.48, 490,481,010.54 and 198,790,383.96 is: 274,328,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,423,650.48 : 490,481,010.54 = 198,790,383.96 : x
  2. Step 2: Convert to fraction form
    355,423,650.48/490,481,010.54 = 198,790,383.96/x
  3. Step 3: Cross multiply
    355,423,650.48x = 490,481,010.54 × 198,790,383.96
  4. Step 4: Simplify right side
    355,423,650.48x = 97,502,908,410,335,408
  5. Step 5: Solve for x
    x = 97,502,908,410,335,408/355,423,650.48
  6. Step 6: Final answer
    x = 274,328,701.20

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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.