Finding the Fourth Proportional to 5,248,813,478.40, 7,874,353,958.40 and 1,568,690,841.60
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Solution
The fourth proportional to 5,248,813,478.40, 7,874,353,958.40 and 1,568,690,841.60 is: 2,353,375,098.75
Step by Step Solution
- Step 1: Write the proportion equation
5,248,813,478.40 : 7,874,353,958.40 = 1,568,690,841.60 : x - Step 2: Convert to fraction form
5,248,813,478.40/7,874,353,958.40 = 1,568,690,841.60/x - Step 3: Cross multiply
5,248,813,478.40x = 7,874,353,958.40 × 1,568,690,841.60 - Step 4: Simplify right side
5,248,813,478.40x = 12,352,426,938,058,786,816 - Step 5: Solve for x
x = 12,352,426,938,058,786,816/5,248,813,478.40 - Step 6: Final answer
x = 2,353,375,098.75
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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.