Home / 680,873,650.40-1,020,638,629.20-335,544,600.80

Finding the Fourth Proportional to 680,873,650.40, 1,020,638,629.20 and 335,544,600.80

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Solution

The fourth proportional to 680,873,650.40, 1,020,638,629.20 and 335,544,600.80 is: 502,985,805.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,873,650.40 : 1,020,638,629.20 = 335,544,600.80 : x
  2. Step 2: Convert to fraction form
    680,873,650.40/1,020,638,629.20 = 335,544,600.80/x
  3. Step 3: Cross multiply
    680,873,650.40x = 1,020,638,629.20 × 335,544,600.80
  4. Step 4: Simplify right side
    680,873,650.40x = 342,469,781,395,973,248
  5. Step 5: Solve for x
    x = 342,469,781,395,973,248/680,873,650.40
  6. Step 6: Final answer
    x = 502,985,805.36

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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.