Finding the Fourth Proportional to 80,574,233.20, 120,861,349.80 and 26,721,545.20
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Solution
The fourth proportional to 80,574,233.20, 120,861,349.80 and 26,721,545.20 is: 40,082,317.80
Step by Step Solution
- Step 1: Write the proportion equation
80,574,233.20 : 120,861,349.80 = 26,721,545.20 : x - Step 2: Convert to fraction form
80,574,233.20/120,861,349.80 = 26,721,545.20/x - Step 3: Cross multiply
80,574,233.20x = 120,861,349.80 × 26,721,545.20 - Step 4: Simplify right side
80,574,233.20x = 3,229,602,021,613,711 - Step 5: Solve for x
x = 3,229,602,021,613,711/80,574,233.20 - Step 6: Final answer
x = 40,082,317.80
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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.