Finding the Fourth Proportional to 128,091,669.84, 192,149,316.38 and 41,830,528.68
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Solution
The fourth proportional to 128,091,669.84, 192,149,316.38 and 41,830,528.68 is: 62,749,650.31
Step by Step Solution
- Step 1: Write the proportion equation
128,091,669.84 : 192,149,316.38 = 41,830,528.68 : x - Step 2: Convert to fraction form
128,091,669.84/192,149,316.38 = 41,830,528.68/x - Step 3: Cross multiply
128,091,669.84x = 192,149,316.38 × 41,830,528.68 - Step 4: Simplify right side
128,091,669.84x = 8,037,707,489,780,560 - Step 5: Solve for x
x = 8,037,707,489,780,560/128,091,669.84 - Step 6: Final answer
x = 62,749,650.31
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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.