Finding the Fourth Proportional to 19,431,506.36, 29,157,347.08 and 7,925,415.06
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Solution
The fourth proportional to 19,431,506.36, 29,157,347.08 and 7,925,415.06 is: 11,892,236.94
Step by Step Solution
- Step 1: Write the proportion equation
19,431,506.36 : 29,157,347.08 = 7,925,415.06 : x - Step 2: Convert to fraction form
19,431,506.36/29,157,347.08 = 7,925,415.06/x - Step 3: Cross multiply
19,431,506.36x = 29,157,347.08 × 7,925,415.06 - Step 4: Simplify right side
19,431,506.36x = 231,084,077,657,479 - Step 5: Solve for x
x = 231,084,077,657,479/19,431,506.36 - Step 6: Final answer
x = 11,892,236.94
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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.