Finding the Fourth Proportional to 89,912,085.62, 124,078,676.58 and 48,658,977.99
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Solution
The fourth proportional to 89,912,085.62, 124,078,676.58 and 48,658,977.99 is: 67,149,388.78
Step by Step Solution
- Step 1: Write the proportion equation
89,912,085.62 : 124,078,676.58 = 48,658,977.99 : x - Step 2: Convert to fraction form
89,912,085.62/124,078,676.58 = 48,658,977.99/x - Step 3: Cross multiply
89,912,085.62x = 124,078,676.58 × 48,658,977.99 - Step 4: Simplify right side
89,912,085.62x = 6,037,541,592,734,549 - Step 5: Solve for x
x = 6,037,541,592,734,549/89,912,085.62 - Step 6: Final answer
x = 67,149,388.78
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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.