Finding the Fourth Proportional to 19,958,971.54, 27,543,220.28 and 11,587,118.14
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Solution
The fourth proportional to 19,958,971.54, 27,543,220.28 and 11,587,118.14 is: 15,990,129.89
Step by Step Solution
- Step 1: Write the proportion equation
19,958,971.54 : 27,543,220.28 = 11,587,118.14 : x - Step 2: Convert to fraction form
19,958,971.54/27,543,220.28 = 11,587,118.14/x - Step 3: Cross multiply
19,958,971.54x = 27,543,220.28 × 11,587,118.14 - Step 4: Simplify right side
19,958,971.54x = 319,146,547,340,403.94 - Step 5: Solve for x
x = 319,146,547,340,403.94/19,958,971.54 - Step 6: Final answer
x = 15,990,129.89
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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.