Finding the Fourth Proportional to 10,185,543.18, 15,278,092.83 and 4,791,203.60
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Solution
The fourth proportional to 10,185,543.18, 15,278,092.83 and 4,791,203.60 is: 7,186,700.99
Step by Step Solution
- Step 1: Write the proportion equation
10,185,543.18 : 15,278,092.83 = 4,791,203.60 : x - Step 2: Convert to fraction form
10,185,543.18/15,278,092.83 = 4,791,203.60/x - Step 3: Cross multiply
10,185,543.18x = 15,278,092.83 × 4,791,203.60 - Step 4: Simplify right side
10,185,543.18x = 73,200,453,291,839.72 - Step 5: Solve for x
x = 73,200,453,291,839.72/10,185,543.18 - Step 6: Final answer
x = 7,186,700.99
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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.