Home / 681,077,855.30-1,021,519,778.10-214,678,666.08

Finding the Fourth Proportional to 681,077,855.30, 1,021,519,778.10 and 214,678,666.08

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Solution

The fourth proportional to 681,077,855.30, 1,021,519,778.10 and 214,678,666.08 is: 321,987,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,077,855.30 : 1,021,519,778.10 = 214,678,666.08 : x
  2. Step 2: Convert to fraction form
    681,077,855.30/1,021,519,778.10 = 214,678,666.08/x
  3. Step 3: Cross multiply
    681,077,855.30x = 1,021,519,778.10 × 214,678,666.08
  4. Step 4: Simplify right side
    681,077,855.30x = 219,298,503,336,845,600
  5. Step 5: Solve for x
    x = 219,298,503,336,845,600/681,077,855.30
  6. Step 6: Final answer
    x = 321,987,422.78

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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.