Finding the Fourth Proportional to 12,356,581.70, 18,537,959.08 and 8,720,408.88
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Solution
The fourth proportional to 12,356,581.70, 18,537,959.08 and 8,720,408.88 is: 13,082,791.58
Step by Step Solution
- Step 1: Write the proportion equation
12,356,581.70 : 18,537,959.08 = 8,720,408.88 : x - Step 2: Convert to fraction form
12,356,581.70/18,537,959.08 = 8,720,408.88/x - Step 3: Cross multiply
12,356,581.70x = 18,537,959.08 × 8,720,408.88 - Step 4: Simplify right side
12,356,581.70x = 161,658,582,978,308.62 - Step 5: Solve for x
x = 161,658,582,978,308.62/12,356,581.70 - Step 6: Final answer
x = 13,082,791.58
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.