Finding the Fourth Proportional to 403,708,571.92, 557,118,073.32 and 218,069,669.62
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Solution
The fourth proportional to 403,708,571.92, 557,118,073.32 and 218,069,669.62 is: 300,936,275.91
Step by Step Solution
- Step 1: Write the proportion equation
403,708,571.92 : 557,118,073.32 = 218,069,669.62 : x - Step 2: Convert to fraction form
403,708,571.92/557,118,073.32 = 218,069,669.62/x - Step 3: Cross multiply
403,708,571.92x = 557,118,073.32 × 218,069,669.62 - Step 4: Simplify right side
403,708,571.92x = 121,490,554,188,223,344 - Step 5: Solve for x
x = 121,490,554,188,223,344/403,708,571.92 - Step 6: Final answer
x = 300,936,275.91
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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.