Finding the Fourth Proportional to 208,199,859.44, 287,316,554.04 and 115,381,946.48
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Solution
The fourth proportional to 208,199,859.44, 287,316,554.04 and 115,381,946.48 is: 159,227,500.68
Step by Step Solution
- Step 1: Write the proportion equation
208,199,859.44 : 287,316,554.04 = 115,381,946.48 : x - Step 2: Convert to fraction form
208,199,859.44/287,316,554.04 = 115,381,946.48/x - Step 3: Cross multiply
208,199,859.44x = 287,316,554.04 × 115,381,946.48 - Step 4: Simplify right side
208,199,859.44x = 33,151,143,261,061,312 - Step 5: Solve for x
x = 33,151,143,261,061,312/208,199,859.44 - Step 6: Final answer
x = 159,227,500.68
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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.