Finding the Fourth Proportional to 13,102,330,149.68, 18,081,214,271.16 and 7,161,906,374.96
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Solution
The fourth proportional to 13,102,330,149.68, 18,081,214,271.16 and 7,161,906,374.96 is: 9,883,430,067.50
Step by Step Solution
- Step 1: Write the proportion equation
13,102,330,149.68 : 18,081,214,271.16 = 7,161,906,374.96 : x - Step 2: Convert to fraction form
13,102,330,149.68/18,081,214,271.16 = 7,161,906,374.96/x - Step 3: Cross multiply
13,102,330,149.68x = 18,081,214,271.16 × 7,161,906,374.96 - Step 4: Simplify right side
13,102,330,149.68x = 129,495,963,755,638,538,240 - Step 5: Solve for x
x = 129,495,963,755,638,538,240/13,102,330,149.68 - Step 6: Final answer
x = 9,883,430,067.50
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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.