Finding the Fourth Proportional to 493,117,178.70, 738,260,190.45 and 478,961,402.70
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Solution
The fourth proportional to 493,117,178.70, 738,260,190.45 and 478,961,402.70 is: 717,067,163.04
Step by Step Solution
- Step 1: Write the proportion equation
493,117,178.70 : 738,260,190.45 = 478,961,402.70 : x - Step 2: Convert to fraction form
493,117,178.70/738,260,190.45 = 478,961,402.70/x - Step 3: Cross multiply
493,117,178.70x = 738,260,190.45 × 478,961,402.70 - Step 4: Simplify right side
493,117,178.70x = 353,598,136,375,501,184 - Step 5: Solve for x
x = 353,598,136,375,501,184/493,117,178.70 - Step 6: Final answer
x = 717,067,163.04
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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.