Finding the Fourth Proportional to 12,403,244.80, 18,569,437.80 and 11,127,786.40
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Solution
The fourth proportional to 12,403,244.80, 18,569,437.80 and 11,127,786.40 is: 16,659,893.50
Step by Step Solution
- Step 1: Write the proportion equation
12,403,244.80 : 18,569,437.80 = 11,127,786.40 : x - Step 2: Convert to fraction form
12,403,244.80/18,569,437.80 = 11,127,786.40/x - Step 3: Cross multiply
12,403,244.80x = 18,569,437.80 × 11,127,786.40 - Step 4: Simplify right side
12,403,244.80x = 206,636,737,406,485.94 - Step 5: Solve for x
x = 206,636,737,406,485.94/12,403,244.80 - Step 6: Final answer
x = 16,659,893.50
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1.5x scale
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.