Finding the Fourth Proportional to 15,135,172.81, 20,886,533.04 and 8,259,654.94
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Solution
The fourth proportional to 15,135,172.81, 20,886,533.04 and 8,259,654.94 is: 11,398,320.85
Step by Step Solution
- Step 1: Write the proportion equation
15,135,172.81 : 20,886,533.04 = 8,259,654.94 : x - Step 2: Convert to fraction form
15,135,172.81/20,886,533.04 = 8,259,654.94/x - Step 3: Cross multiply
15,135,172.81x = 20,886,533.04 × 8,259,654.94 - Step 4: Simplify right side
15,135,172.81x = 172,515,555,803,309.22 - Step 5: Solve for x
x = 172,515,555,803,309.22/15,135,172.81 - Step 6: Final answer
x = 11,398,320.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.