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Finding the Fourth Proportional to 472,392,583.20, 708,588,874.80 and 455,173,894.80

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Solution

The fourth proportional to 472,392,583.20, 708,588,874.80 and 455,173,894.80 is: 682,760,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,583.20 : 708,588,874.80 = 455,173,894.80 : x
  2. Step 2: Convert to fraction form
    472,392,583.20/708,588,874.80 = 455,173,894.80/x
  3. Step 3: Cross multiply
    472,392,583.20x = 708,588,874.80 × 455,173,894.80
  4. Step 4: Simplify right side
    472,392,583.20x = 322,531,157,954,665,536
  5. Step 5: Solve for x
    x = 322,531,157,954,665,536/472,392,583.20
  6. Step 6: Final answer
    x = 682,760,842.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.