Finding the Fourth Proportional to 7,974,561.93, 11,961,264.51 and 3,115,955.13
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Solution
The fourth proportional to 7,974,561.93, 11,961,264.51 and 3,115,955.13 is: 4,673,706.70
Step by Step Solution
- Step 1: Write the proportion equation
7,974,561.93 : 11,961,264.51 = 3,115,955.13 : x - Step 2: Convert to fraction form
7,974,561.93/11,961,264.51 = 3,115,955.13/x - Step 3: Cross multiply
7,974,561.93x = 11,961,264.51 × 3,115,955.13 - Step 4: Simplify right side
7,974,561.93x = 37,270,763,511,221.44 - Step 5: Solve for x
x = 37,270,763,511,221.44/7,974,561.93 - Step 6: Final answer
x = 4,673,706.70
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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.