Home / 1,328,603,792.80-1,992,905,689.20-1,320,951,042.40

Finding the Fourth Proportional to 1,328,603,792.80, 1,992,905,689.20 and 1,320,951,042.40

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Solution

The fourth proportional to 1,328,603,792.80, 1,992,905,689.20 and 1,320,951,042.40 is: 1,981,426,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,603,792.80 : 1,992,905,689.20 = 1,320,951,042.40 : x
  2. Step 2: Convert to fraction form
    1,328,603,792.80/1,992,905,689.20 = 1,320,951,042.40/x
  3. Step 3: Cross multiply
    1,328,603,792.80x = 1,992,905,689.20 × 1,320,951,042.40
  4. Step 4: Simplify right side
    1,328,603,792.80x = 2,632,530,847,553,630,720
  5. Step 5: Solve for x
    x = 2,632,530,847,553,630,720/1,328,603,792.80
  6. Step 6: Final answer
    x = 1,981,426,563.60

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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.