Finding the Fourth Proportional to 258,902,491.77, 388,351,079.99 and 149,658,151.21
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Solution
The fourth proportional to 258,902,491.77, 388,351,079.99 and 149,658,151.21 is: 224,485,690.55
Step by Step Solution
- Step 1: Write the proportion equation
258,902,491.77 : 388,351,079.99 = 149,658,151.21 : x - Step 2: Convert to fraction form
258,902,491.77/388,351,079.99 = 149,658,151.21/x - Step 3: Cross multiply
258,902,491.77x = 388,351,079.99 × 149,658,151.21 - Step 4: Simplify right side
258,902,491.77x = 58,119,904,650,552,280 - Step 5: Solve for x
x = 58,119,904,650,552,280/258,902,491.77 - Step 6: Final answer
x = 224,485,690.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.