Finding the Fourth Proportional to 68,220,160.20, 102,330,240.30 and 19,699,596.90
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Solution
The fourth proportional to 68,220,160.20, 102,330,240.30 and 19,699,596.90 is: 29,549,395.35
Step by Step Solution
- Step 1: Write the proportion equation
68,220,160.20 : 102,330,240.30 = 19,699,596.90 : x - Step 2: Convert to fraction form
68,220,160.20/102,330,240.30 = 19,699,596.90/x - Step 3: Cross multiply
68,220,160.20x = 102,330,240.30 × 19,699,596.90 - Step 4: Simplify right side
68,220,160.20x = 2,015,864,484,590,134.75 - Step 5: Solve for x
x = 2,015,864,484,590,134.75/68,220,160.20 - Step 6: Final answer
x = 29,549,395.35
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Double scale
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Similar ratio
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1.5x scale
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.