Finding the Fourth Proportional to 386,574,168, 533,472,439.20 and 212,733,912
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Solution
The fourth proportional to 386,574,168, 533,472,439.20 and 212,733,912 is: 293,572,846.63
Step by Step Solution
- Step 1: Write the proportion equation
386,574,168 : 533,472,439.20 = 212,733,912 : x - Step 2: Convert to fraction form
386,574,168/533,472,439.20 = 212,733,912/x - Step 3: Cross multiply
386,574,168x = 533,472,439.20 × 212,733,912 - Step 4: Simplify right side
386,574,168x = 113,487,678,935,198,144 - Step 5: Solve for x
x = 113,487,678,935,198,144/386,574,168 - Step 6: Final answer
x = 293,572,846.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.