Finding the Fourth Proportional to 490,147,220.10, 735,220,830.15 and 486,745,997.70
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Solution
The fourth proportional to 490,147,220.10, 735,220,830.15 and 486,745,997.70 is: 730,118,996.55
Step by Step Solution
- Step 1: Write the proportion equation
490,147,220.10 : 735,220,830.15 = 486,745,997.70 : x - Step 2: Convert to fraction form
490,147,220.10/735,220,830.15 = 486,745,997.70/x - Step 3: Cross multiply
490,147,220.10x = 735,220,830.15 × 486,745,997.70 - Step 4: Simplify right side
490,147,220.10x = 357,865,796,501,184,000 - Step 5: Solve for x
x = 357,865,796,501,184,000/490,147,220.10 - Step 6: Final answer
x = 730,118,996.55
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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.