Finding the Fourth Proportional to 18,145,999.30, 27,218,998.95 and 16,298,421.70
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Solution
The fourth proportional to 18,145,999.30, 27,218,998.95 and 16,298,421.70 is: 24,447,632.55
Step by Step Solution
- Step 1: Write the proportion equation
18,145,999.30 : 27,218,998.95 = 16,298,421.70 : x - Step 2: Convert to fraction form
18,145,999.30/27,218,998.95 = 16,298,421.70/x - Step 3: Cross multiply
18,145,999.30x = 27,218,998.95 × 16,298,421.70 - Step 4: Simplify right side
18,145,999.30x = 443,626,723,138,957.19 - Step 5: Solve for x
x = 443,626,723,138,957.19/18,145,999.30 - Step 6: Final answer
x = 24,447,632.55
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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.