Finding the Fourth Proportional to 2,585,716,516.67, 3,879,119,498.66 and 838,782,848.75
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Solution
The fourth proportional to 2,585,716,516.67, 3,879,119,498.66 and 838,782,848.75 is: 1,258,350,976.51
Step by Step Solution
- Step 1: Write the proportion equation
2,585,716,516.67 : 3,879,119,498.66 = 838,782,848.75 : x - Step 2: Convert to fraction form
2,585,716,516.67/3,879,119,498.66 = 838,782,848.75/x - Step 3: Cross multiply
2,585,716,516.67x = 3,879,119,498.66 × 838,782,848.75 - Step 4: Simplify right side
2,585,716,516.67x = 3,253,738,903,743,343,616 - Step 5: Solve for x
x = 3,253,738,903,743,343,616/2,585,716,516.67 - Step 6: Final answer
x = 1,258,350,976.51
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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.