Finding the Fourth Proportional to 5,218,934,349.60, 7,202,130,582.60 and 2,872,090,893.60
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Solution
The fourth proportional to 5,218,934,349.60, 7,202,130,582.60 and 2,872,090,893.60 is: 3,963,486,082.63
Step by Step Solution
- Step 1: Write the proportion equation
5,218,934,349.60 : 7,202,130,582.60 = 2,872,090,893.60 : x - Step 2: Convert to fraction form
5,218,934,349.60/7,202,130,582.60 = 2,872,090,893.60/x - Step 3: Cross multiply
5,218,934,349.60x = 7,202,130,582.60 × 2,872,090,893.60 - Step 4: Simplify right side
5,218,934,349.60x = 20,685,173,660,803,522,560 - Step 5: Solve for x
x = 20,685,173,660,803,522,560/5,218,934,349.60 - Step 6: Final answer
x = 3,963,486,082.63
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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.