Finding the Fourth Proportional to 18,971,485.56, 28,452,972.96 and 8,726,506.74
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Solution
The fourth proportional to 18,971,485.56, 28,452,972.96 and 8,726,506.74 is: 13,087,802.72
Step by Step Solution
- Step 1: Write the proportion equation
18,971,485.56 : 28,452,972.96 = 8,726,506.74 : x - Step 2: Convert to fraction form
18,971,485.56/28,452,972.96 = 8,726,506.74/x - Step 3: Cross multiply
18,971,485.56x = 28,452,972.96 × 8,726,506.74 - Step 4: Simplify right side
18,971,485.56x = 248,295,060,308,477.75 - Step 5: Solve for x
x = 248,295,060,308,477.75/18,971,485.56 - Step 6: Final answer
x = 13,087,802.72
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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.