Finding the Fourth Proportional to 19,706,255.36, 27,207,428.52 and 17,637,688.70
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Solution
The fourth proportional to 19,706,255.36, 27,207,428.52 and 17,637,688.70 is: 24,351,463.32
Step by Step Solution
- Step 1: Write the proportion equation
19,706,255.36 : 27,207,428.52 = 17,637,688.70 : x - Step 2: Convert to fraction form
19,706,255.36/27,207,428.52 = 17,637,688.70/x - Step 3: Cross multiply
19,706,255.36x = 27,207,428.52 × 17,637,688.70 - Step 4: Simplify right side
19,706,255.36x = 479,876,154,563,261.69 - Step 5: Solve for x
x = 479,876,154,563,261.69/19,706,255.36 - Step 6: Final answer
x = 24,351,463.32
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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.