Finding the Fourth Proportional to 8,169,991.30, 12,254,986.95 and 2,186,359.30
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Solution
The fourth proportional to 8,169,991.30, 12,254,986.95 and 2,186,359.30 is: 3,279,538.95
Step by Step Solution
- Step 1: Write the proportion equation
8,169,991.30 : 12,254,986.95 = 2,186,359.30 : x - Step 2: Convert to fraction form
8,169,991.30/12,254,986.95 = 2,186,359.30/x - Step 3: Cross multiply
8,169,991.30x = 12,254,986.95 × 2,186,359.30 - Step 4: Simplify right side
8,169,991.30x = 26,793,804,689,511.13 - Step 5: Solve for x
x = 26,793,804,689,511.13/8,169,991.30 - Step 6: Final answer
x = 3,279,538.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.