Finding the Fourth Proportional to 21,730,842.96, 29,988,801.97 and 11,941,289.68
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Solution
The fourth proportional to 21,730,842.96, 29,988,801.97 and 11,941,289.68 is: 16,479,110.92
Step by Step Solution
- Step 1: Write the proportion equation
21,730,842.96 : 29,988,801.97 = 11,941,289.68 : x - Step 2: Convert to fraction form
21,730,842.96/29,988,801.97 = 11,941,289.68/x - Step 3: Cross multiply
21,730,842.96x = 29,988,801.97 × 11,941,289.68 - Step 4: Simplify right side
21,730,842.96x = 358,104,971,498,486.25 - Step 5: Solve for x
x = 358,104,971,498,486.25/21,730,842.96 - Step 6: Final answer
x = 16,479,110.92
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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.