Finding the Fourth Proportional to 19,969,486.15, 27,553,133.69 and 13,772,551.99
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Solution
The fourth proportional to 19,969,486.15, 27,553,133.69 and 13,772,551.99 is: 19,002,840.80
Step by Step Solution
- Step 1: Write the proportion equation
19,969,486.15 : 27,553,133.69 = 13,772,551.99 : x - Step 2: Convert to fraction form
19,969,486.15/27,553,133.69 = 13,772,551.99/x - Step 3: Cross multiply
19,969,486.15x = 27,553,133.69 × 13,772,551.99 - Step 4: Simplify right side
19,969,486.15x = 379,476,966,095,199.94 - Step 5: Solve for x
x = 379,476,966,095,199.94/19,969,486.15 - Step 6: Final answer
x = 19,002,840.80
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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.