Finding the Fourth Proportional to 347,701,642.80, 521,552,464.20 and 209,952,135.60
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Solution
The fourth proportional to 347,701,642.80, 521,552,464.20 and 209,952,135.60 is: 314,928,203.40
Step by Step Solution
- Step 1: Write the proportion equation
347,701,642.80 : 521,552,464.20 = 209,952,135.60 : x - Step 2: Convert to fraction form
347,701,642.80/521,552,464.20 = 209,952,135.60/x - Step 3: Cross multiply
347,701,642.80x = 521,552,464.20 × 209,952,135.60 - Step 4: Simplify right side
347,701,642.80x = 109,501,053,686,232,544 - Step 5: Solve for x
x = 109,501,053,686,232,544/347,701,642.80 - Step 6: Final answer
x = 314,928,203.40
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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.