Finding the Fourth Proportional to 19,715,910.84, 27,169,199.82 and 15,074,954.28
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Solution
The fourth proportional to 19,715,910.84, 27,169,199.82 and 15,074,954.28 is: 20,773,802.87
Step by Step Solution
- Step 1: Write the proportion equation
19,715,910.84 : 27,169,199.82 = 15,074,954.28 : x - Step 2: Convert to fraction form
19,715,910.84/27,169,199.82 = 15,074,954.28/x - Step 3: Cross multiply
19,715,910.84x = 27,169,199.82 × 15,074,954.28 - Step 4: Simplify right side
19,715,910.84x = 409,574,445,110,684.19 - Step 5: Solve for x
x = 409,574,445,110,684.19/19,715,910.84 - Step 6: Final answer
x = 20,773,802.87
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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.