Finding the Fourth Proportional to 11,490,681.18, 15,857,010.92 and 6,263,574.90
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Solution
The fourth proportional to 11,490,681.18, 15,857,010.92 and 6,263,574.90 is: 8,643,662.99
Step by Step Solution
- Step 1: Write the proportion equation
11,490,681.18 : 15,857,010.92 = 6,263,574.90 : x - Step 2: Convert to fraction form
11,490,681.18/15,857,010.92 = 6,263,574.90/x - Step 3: Cross multiply
11,490,681.18x = 15,857,010.92 × 6,263,574.90 - Step 4: Simplify right side
11,490,681.18x = 99,321,575,620,606.06 - Step 5: Solve for x
x = 99,321,575,620,606.06/11,490,681.18 - Step 6: Final answer
x = 8,643,662.99
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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.