Finding the Fourth Proportional to 15,485,992.47, 21,369,558.51 and 8,517,153.42
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Solution
The fourth proportional to 15,485,992.47, 21,369,558.51 and 8,517,153.42 is: 11,753,060.63
Step by Step Solution
- Step 1: Write the proportion equation
15,485,992.47 : 21,369,558.51 = 8,517,153.42 : x - Step 2: Convert to fraction form
15,485,992.47/21,369,558.51 = 8,517,153.42/x - Step 3: Cross multiply
15,485,992.47x = 21,369,558.51 × 8,517,153.42 - Step 4: Simplify right side
15,485,992.47x = 182,007,808,347,336.62 - Step 5: Solve for x
x = 182,007,808,347,336.62/15,485,992.47 - Step 6: Final answer
x = 11,753,060.63
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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.