Finding the Fourth Proportional to 628,783,917.66, 867,727,736.24 and 346,536,536.09
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Solution
The fourth proportional to 628,783,917.66, 867,727,736.24 and 346,536,536.09 is: 478,223,687.87
Step by Step Solution
- Step 1: Write the proportion equation
628,783,917.66 : 867,727,736.24 = 346,536,536.09 : x - Step 2: Convert to fraction form
628,783,917.66/867,727,736.24 = 346,536,536.09/x - Step 3: Cross multiply
628,783,917.66x = 867,727,736.24 × 346,536,536.09 - Step 4: Simplify right side
628,783,917.66x = 300,699,363,979,755,456 - Step 5: Solve for x
x = 300,699,363,979,755,456/628,783,917.66 - Step 6: Final answer
x = 478,223,687.87
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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.