Finding the Fourth Proportional to 19,901,970.68, 27,465,849.97 and 11,956,943.08
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Solution
The fourth proportional to 19,901,970.68, 27,465,849.97 and 11,956,943.08 is: 16,501,260.61
Step by Step Solution
- Step 1: Write the proportion equation
19,901,970.68 : 27,465,849.97 = 11,956,943.08 : x - Step 2: Convert to fraction form
19,901,970.68/27,465,849.97 = 11,956,943.08/x - Step 3: Cross multiply
19,901,970.68x = 27,465,849.97 × 11,956,943.08 - Step 4: Simplify right side
19,901,970.68x = 328,407,604,739,549.69 - Step 5: Solve for x
x = 328,407,604,739,549.69/19,901,970.68 - Step 6: Final answer
x = 16,501,260.61
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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.