Finding the Fourth Proportional to 19,932,800.70, 27,981,503.70 and 19,932,800.70
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Solution
The fourth proportional to 19,932,800.70, 27,981,503.70 and 19,932,800.70 is: 27,981,503.70
Step by Step Solution
- Step 1: Write the proportion equation
19,932,800.70 : 27,981,503.70 = 19,932,800.70 : x - Step 2: Convert to fraction form
19,932,800.70/27,981,503.70 = 19,932,800.70/x - Step 3: Cross multiply
19,932,800.70x = 27,981,503.70 × 19,932,800.70 - Step 4: Simplify right side
19,932,800.70x = 557,749,736,538,412.56 - Step 5: Solve for x
x = 557,749,736,538,412.56/19,932,800.70 - Step 6: Final answer
x = 27,981,503.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.