Finding the Fourth Proportional to 19,319,207.68, 28,992,093.92 and 7,959,654.28
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Solution
The fourth proportional to 19,319,207.68, 28,992,093.92 and 7,959,654.28 is: 11,944,953.87
Step by Step Solution
- Step 1: Write the proportion equation
19,319,207.68 : 28,992,093.92 = 7,959,654.28 : x - Step 2: Convert to fraction form
19,319,207.68/28,992,093.92 = 7,959,654.28/x - Step 3: Cross multiply
19,319,207.68x = 28,992,093.92 × 7,959,654.28 - Step 4: Simplify right side
19,319,207.68x = 230,767,044,456,490 - Step 5: Solve for x
x = 230,767,044,456,490/19,319,207.68 - Step 6: Final answer
x = 11,944,953.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.