Finding the Fourth Proportional to 19,852,582.44, 27,389,587.14 and 12,981,086.76
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Solution
The fourth proportional to 19,852,582.44, 27,389,587.14 and 12,981,086.76 is: 17,909,337.89
Step by Step Solution
- Step 1: Write the proportion equation
19,852,582.44 : 27,389,587.14 = 12,981,086.76 : x - Step 2: Convert to fraction form
19,852,582.44/27,389,587.14 = 12,981,086.76/x - Step 3: Cross multiply
19,852,582.44x = 27,389,587.14 × 12,981,086.76 - Step 4: Simplify right side
19,852,582.44x = 355,546,606,984,920.25 - Step 5: Solve for x
x = 355,546,606,984,920.25/19,852,582.44 - Step 6: Final answer
x = 17,909,337.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.