Finding the Fourth Proportional to 388,446,472.01, 536,049,796.47 and 212,230,674.74
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Solution
The fourth proportional to 388,446,472.01, 536,049,796.47 and 212,230,674.74 is: 292,874,870.02
Step by Step Solution
- Step 1: Write the proportion equation
388,446,472.01 : 536,049,796.47 = 212,230,674.74 : x - Step 2: Convert to fraction form
388,446,472.01/536,049,796.47 = 212,230,674.74/x - Step 3: Cross multiply
388,446,472.01x = 536,049,796.47 × 212,230,674.74 - Step 4: Simplify right side
388,446,472.01x = 113,766,209,996,387,536 - Step 5: Solve for x
x = 113,766,209,996,387,536/388,446,472.01 - Step 6: Final answer
x = 292,874,870.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.