Finding the Fourth Proportional to 28,656,082.90, 42,984,124.35 and 18,452,415.70
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Solution
The fourth proportional to 28,656,082.90, 42,984,124.35 and 18,452,415.70 is: 27,678,623.55
Step by Step Solution
- Step 1: Write the proportion equation
28,656,082.90 : 42,984,124.35 = 18,452,415.70 : x - Step 2: Convert to fraction form
28,656,082.90/42,984,124.35 = 18,452,415.70/x - Step 3: Cross multiply
28,656,082.90x = 42,984,124.35 × 18,452,415.70 - Step 4: Simplify right side
28,656,082.90x = 793,160,931,006,692.25 - Step 5: Solve for x
x = 793,160,931,006,692.25/28,656,082.90 - Step 6: Final answer
x = 27,678,623.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.