Finding the Fourth Proportional to 45,586,419.90, 68,321,569.05 and 18,629,619.90
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Solution
The fourth proportional to 45,586,419.90, 68,321,569.05 and 18,629,619.90 is: 27,920,702.38
Step by Step Solution
- Step 1: Write the proportion equation
45,586,419.90 : 68,321,569.05 = 18,629,619.90 : x - Step 2: Convert to fraction form
45,586,419.90/68,321,569.05 = 18,629,619.90/x - Step 3: Cross multiply
45,586,419.90x = 68,321,569.05 × 18,629,619.90 - Step 4: Simplify right side
45,586,419.90x = 1,272,804,862,373,104 - Step 5: Solve for x
x = 1,272,804,862,373,104/45,586,419.90 - Step 6: Final answer
x = 27,920,702.38
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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.