Finding the Fourth Proportional to 419,448,414.84, 579,086,830.80 and 372,909,904.26
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Solution
The fourth proportional to 419,448,414.84, 579,086,830.80 and 372,909,904.26 is: 514,836,168.15
Step by Step Solution
- Step 1: Write the proportion equation
419,448,414.84 : 579,086,830.80 = 372,909,904.26 : x - Step 2: Convert to fraction form
419,448,414.84/579,086,830.80 = 372,909,904.26/x - Step 3: Cross multiply
419,448,414.84x = 579,086,830.80 × 372,909,904.26 - Step 4: Simplify right side
419,448,414.84x = 215,947,214,631,854,784 - Step 5: Solve for x
x = 215,947,214,631,854,784/419,448,414.84 - Step 6: Final answer
x = 514,836,168.15
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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.