Finding the Fourth Proportional to 9,153,134.41, 12,630,490.68 and 5,431,324.14
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Solution
The fourth proportional to 9,153,134.41, 12,630,490.68 and 5,431,324.14 is: 7,494,731.95
Step by Step Solution
- Step 1: Write the proportion equation
9,153,134.41 : 12,630,490.68 = 5,431,324.14 : x - Step 2: Convert to fraction form
9,153,134.41/12,630,490.68 = 5,431,324.14/x - Step 3: Cross multiply
9,153,134.41x = 12,630,490.68 × 5,431,324.14 - Step 4: Simplify right side
9,153,134.41x = 68,600,288,930,329.01 - Step 5: Solve for x
x = 68,600,288,930,329.01/9,153,134.41 - Step 6: Final answer
x = 7,494,731.95
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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.