Finding the Fourth Proportional to 28,470,471.68, 42,706,888.50 and 8,275,713.68
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Solution
The fourth proportional to 28,470,471.68, 42,706,888.50 and 8,275,713.68 is: 12,413,913.80
Step by Step Solution
- Step 1: Write the proportion equation
28,470,471.68 : 42,706,888.50 = 8,275,713.68 : x - Step 2: Convert to fraction form
28,470,471.68/42,706,888.50 = 8,275,713.68/x - Step 3: Cross multiply
28,470,471.68x = 42,706,888.50 × 8,275,713.68 - Step 4: Simplify right side
28,470,471.68x = 353,429,981,389,684.69 - Step 5: Solve for x
x = 353,429,981,389,684.69/28,470,471.68 - Step 6: Final answer
x = 12,413,913.80
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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.