Finding the Fourth Proportional to 321,497,728.40, 482,246,592.60 and 319,230,246.80
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Solution
The fourth proportional to 321,497,728.40, 482,246,592.60 and 319,230,246.80 is: 478,845,370.20
Step by Step Solution
- Step 1: Write the proportion equation
321,497,728.40 : 482,246,592.60 = 319,230,246.80 : x - Step 2: Convert to fraction form
321,497,728.40/482,246,592.60 = 319,230,246.80/x - Step 3: Cross multiply
321,497,728.40x = 482,246,592.60 × 319,230,246.80 - Step 4: Simplify right side
321,497,728.40x = 153,947,698,774,157,056 - Step 5: Solve for x
x = 153,947,698,774,157,056/321,497,728.40 - Step 6: Final answer
x = 478,845,370.20
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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.