Home / 809,095,876.90-1,211,590,951.35-445,179,076.90

Finding the Fourth Proportional to 809,095,876.90, 1,211,590,951.35 and 445,179,076.90

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Solution

The fourth proportional to 809,095,876.90, 1,211,590,951.35 and 445,179,076.90 is: 666,639,092.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,095,876.90 : 1,211,590,951.35 = 445,179,076.90 : x
  2. Step 2: Convert to fraction form
    809,095,876.90/1,211,590,951.35 = 445,179,076.90/x
  3. Step 3: Cross multiply
    809,095,876.90x = 1,211,590,951.35 × 445,179,076.90
  4. Step 4: Simplify right side
    809,095,876.90x = 539,374,941,302,385,728
  5. Step 5: Solve for x
    x = 539,374,941,302,385,728/809,095,876.90
  6. Step 6: Final answer
    x = 666,639,092.72

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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.