Finding the Fourth Proportional to 199,328,106.96, 275,079,383.24 and 115,689,965.52
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Solution
The fourth proportional to 199,328,106.96, 275,079,383.24 and 115,689,965.52 is: 159,655,980.52
Step by Step Solution
- Step 1: Write the proportion equation
199,328,106.96 : 275,079,383.24 = 115,689,965.52 : x - Step 2: Convert to fraction form
199,328,106.96/275,079,383.24 = 115,689,965.52/x - Step 3: Cross multiply
199,328,106.96x = 275,079,383.24 × 115,689,965.52 - Step 4: Simplify right side
199,328,106.96x = 31,823,924,362,298,464 - Step 5: Solve for x
x = 31,823,924,362,298,464/199,328,106.96 - Step 6: Final answer
x = 159,655,980.52
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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.