Home / 809,095,874.40-1,211,590,947.60-445,179,074.40

Finding the Fourth Proportional to 809,095,874.40, 1,211,590,947.60 and 445,179,074.40

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Solution

The fourth proportional to 809,095,874.40, 1,211,590,947.60 and 445,179,074.40 is: 666,639,088.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,095,874.40 : 1,211,590,947.60 = 445,179,074.40 : x
  2. Step 2: Convert to fraction form
    809,095,874.40/1,211,590,947.60 = 445,179,074.40/x
  3. Step 3: Cross multiply
    809,095,874.40x = 1,211,590,947.60 × 445,179,074.40
  4. Step 4: Simplify right side
    809,095,874.40x = 539,374,936,603,986,816
  5. Step 5: Solve for x
    x = 539,374,936,603,986,816/809,095,874.40
  6. Step 6: Final answer
    x = 666,639,088.98

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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.