Finding the Fourth Proportional to 585,800,969.58, 808,351,905.87 and 347,605,107.53
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Solution
The fourth proportional to 585,800,969.58, 808,351,905.87 and 347,605,107.53 is: 479,663,342.58
Step by Step Solution
- Step 1: Write the proportion equation
585,800,969.58 : 808,351,905.87 = 347,605,107.53 : x - Step 2: Convert to fraction form
585,800,969.58/808,351,905.87 = 347,605,107.53/x - Step 3: Cross multiply
585,800,969.58x = 808,351,905.87 × 347,605,107.53 - Step 4: Simplify right side
585,800,969.58x = 280,987,251,157,980,000 - Step 5: Solve for x
x = 280,987,251,157,980,000/585,800,969.58 - Step 6: Final answer
x = 479,663,342.58
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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.