Finding the Fourth Proportional to 3,921,048,622.08, 5,411,047,950.72 and 2,136,902,497.92
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Solution
The fourth proportional to 3,921,048,622.08, 5,411,047,950.72 and 2,136,902,497.92 is: 2,948,925,911.59
Step by Step Solution
- Step 1: Write the proportion equation
3,921,048,622.08 : 5,411,047,950.72 = 2,136,902,497.92 : x - Step 2: Convert to fraction form
3,921,048,622.08/5,411,047,950.72 = 2,136,902,497.92/x - Step 3: Cross multiply
3,921,048,622.08x = 5,411,047,950.72 × 2,136,902,497.92 - Step 4: Simplify right side
3,921,048,622.08x = 11,562,881,882,258,466,816 - Step 5: Solve for x
x = 11,562,881,882,258,466,816/3,921,048,622.08 - Step 6: Final answer
x = 2,948,925,911.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.