Finding the Fourth Proportional to 21,185,207.02, 29,235,468.17 and 11,892,774.63
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Solution
The fourth proportional to 21,185,207.02, 29,235,468.17 and 11,892,774.63 is: 16,411,963.02
Step by Step Solution
- Step 1: Write the proportion equation
21,185,207.02 : 29,235,468.17 = 11,892,774.63 : x - Step 2: Convert to fraction form
21,185,207.02/29,235,468.17 = 11,892,774.63/x - Step 3: Cross multiply
21,185,207.02x = 29,235,468.17 × 11,892,774.63 - Step 4: Simplify right side
21,185,207.02x = 347,690,834,287,713.44 - Step 5: Solve for x
x = 347,690,834,287,713.44/21,185,207.02 - Step 6: Final answer
x = 16,411,963.02
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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.