Finding the Fourth Proportional to 19,557,943.58, 26,991,670.11 and 11,411,805.98
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Solution
The fourth proportional to 19,557,943.58, 26,991,670.11 and 11,411,805.98 is: 15,749,288.83
Step by Step Solution
- Step 1: Write the proportion equation
19,557,943.58 : 26,991,670.11 = 11,411,805.98 : x - Step 2: Convert to fraction form
19,557,943.58/26,991,670.11 = 11,411,805.98/x - Step 3: Cross multiply
19,557,943.58x = 26,991,670.11 × 11,411,805.98 - Step 4: Simplify right side
19,557,943.58x = 308,023,702,371,485.25 - Step 5: Solve for x
x = 308,023,702,371,485.25/19,557,943.58 - Step 6: Final answer
x = 15,749,288.83
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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.