Finding the Fourth Proportional to 291,433,473.11, 402,177,538.43 and 165,985,660.48
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Solution
The fourth proportional to 291,433,473.11, 402,177,538.43 and 165,985,660.48 is: 229,059,838.72
Step by Step Solution
- Step 1: Write the proportion equation
291,433,473.11 : 402,177,538.43 = 165,985,660.48 : x - Step 2: Convert to fraction form
291,433,473.11/402,177,538.43 = 165,985,660.48/x - Step 3: Cross multiply
291,433,473.11x = 402,177,538.43 × 165,985,660.48 - Step 4: Simplify right side
291,433,473.11x = 66,755,704,345,694,200 - Step 5: Solve for x
x = 66,755,704,345,694,200/291,433,473.11 - Step 6: Final answer
x = 229,059,838.72
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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.