Finding the Fourth Proportional to 921,244,889,638.15, 1,382,055,804,644.40 and 316,791,594,062.65
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Solution
The fourth proportional to 921,244,889,638.15, 1,382,055,804,644.40 and 316,791,594,062.65 is: 475,252,200,974.28
Step by Step Solution
- Step 1: Write the proportion equation
921,244,889,638.15 : 1,382,055,804,644.40 = 316,791,594,062.65 : x - Step 2: Convert to fraction form
921,244,889,638.15/1,382,055,804,644.40 = 316,791,594,062.65/x - Step 3: Cross multiply
921,244,889,638.15x = 1,382,055,804,644.40 × 316,791,594,062.65 - Step 4: Simplify right side
921,244,889,638.15x = 437,823,661,436,837,866,504,192 - Step 5: Solve for x
x = 437,823,661,436,837,866,504,192/921,244,889,638.15 - Step 6: Final answer
x = 475,252,200,974.28
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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.