Home / 778,910,846.40-1,074,893,025.60-426,480,433.92

Finding the Fourth Proportional to 778,910,846.40, 1,074,893,025.60 and 426,480,433.92

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Solution

The fourth proportional to 778,910,846.40, 1,074,893,025.60 and 426,480,433.92 is: 588,540,840.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,910,846.40 : 1,074,893,025.60 = 426,480,433.92 : x
  2. Step 2: Convert to fraction form
    778,910,846.40/1,074,893,025.60 = 426,480,433.92/x
  3. Step 3: Cross multiply
    778,910,846.40x = 1,074,893,025.60 × 426,480,433.92
  4. Step 4: Simplify right side
    778,910,846.40x = 458,420,843,975,469,632
  5. Step 5: Solve for x
    x = 458,420,843,975,469,632/778,910,846.40
  6. Step 6: Final answer
    x = 588,540,840.19

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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.