Finding the Fourth Proportional to 37,643,993.80, 56,465,990.70 and 12,087,586.60
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Solution
The fourth proportional to 37,643,993.80, 56,465,990.70 and 12,087,586.60 is: 18,131,379.90
Step by Step Solution
- Step 1: Write the proportion equation
37,643,993.80 : 56,465,990.70 = 12,087,586.60 : x - Step 2: Convert to fraction form
37,643,993.80/56,465,990.70 = 12,087,586.60/x - Step 3: Cross multiply
37,643,993.80x = 56,465,990.70 × 12,087,586.60 - Step 4: Simplify right side
37,643,993.80x = 682,537,552,541,044.62 - Step 5: Solve for x
x = 682,537,552,541,044.62/37,643,993.80 - Step 6: Final answer
x = 18,131,379.90
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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.