Finding the Fourth Proportional to 129,025,128.30, 193,537,692.45 and 48,235,598.70
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Solution
The fourth proportional to 129,025,128.30, 193,537,692.45 and 48,235,598.70 is: 72,353,398.05
Step by Step Solution
- Step 1: Write the proportion equation
129,025,128.30 : 193,537,692.45 = 48,235,598.70 : x - Step 2: Convert to fraction form
129,025,128.30/193,537,692.45 = 48,235,598.70/x - Step 3: Cross multiply
129,025,128.30x = 193,537,692.45 × 48,235,598.70 - Step 4: Simplify right side
129,025,128.30x = 9,335,406,466,342,220 - Step 5: Solve for x
x = 9,335,406,466,342,220/129,025,128.30 - Step 6: Final answer
x = 72,353,398.05
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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.