Finding the Fourth Proportional to 5,158,011.18, 7,118,129.11 and 2,835,118.48
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Solution
The fourth proportional to 5,158,011.18, 7,118,129.11 and 2,835,118.48 is: 3,912,503.99
Step by Step Solution
- Step 1: Write the proportion equation
5,158,011.18 : 7,118,129.11 = 2,835,118.48 : x - Step 2: Convert to fraction form
5,158,011.18/7,118,129.11 = 2,835,118.48/x - Step 3: Cross multiply
5,158,011.18x = 7,118,129.11 × 2,835,118.48 - Step 4: Simplify right side
5,158,011.18x = 20,180,739,345,538.53 - Step 5: Solve for x
x = 20,180,739,345,538.53/5,158,011.18 - Step 6: Final answer
x = 3,912,503.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.