Finding the Fourth Proportional to 18,572,577.30, 27,862,802.55 and 5,617,664.10
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Solution
The fourth proportional to 18,572,577.30, 27,862,802.55 and 5,617,664.10 is: 8,427,686.86
Step by Step Solution
- Step 1: Write the proportion equation
18,572,577.30 : 27,862,802.55 = 5,617,664.10 : x - Step 2: Convert to fraction form
18,572,577.30/27,862,802.55 = 5,617,664.10/x - Step 3: Cross multiply
18,572,577.30x = 27,862,802.55 × 5,617,664.10 - Step 4: Simplify right side
18,572,577.30x = 156,523,865,610,523.44 - Step 5: Solve for x
x = 156,523,865,610,523.44/18,572,577.30 - Step 6: Final answer
x = 8,427,686.86
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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.