Finding the Fourth Proportional to 19,881,223.35, 27,436,252.16 and 11,179,319.84
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Solution
The fourth proportional to 19,881,223.35, 27,436,252.16 and 11,179,319.84 is: 15,427,553.57
Step by Step Solution
- Step 1: Write the proportion equation
19,881,223.35 : 27,436,252.16 = 11,179,319.84 : x - Step 2: Convert to fraction form
19,881,223.35/27,436,252.16 = 11,179,319.84/x - Step 3: Cross multiply
19,881,223.35x = 27,436,252.16 × 11,179,319.84 - Step 4: Simplify right side
19,881,223.35x = 306,718,638,255,512.75 - Step 5: Solve for x
x = 306,718,638,255,512.75/19,881,223.35 - Step 6: Final answer
x = 15,427,553.57
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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.