Finding the Fourth Proportional to 352,056,071.20, 528,084,106.80 and 320,311,328.80
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Solution
The fourth proportional to 352,056,071.20, 528,084,106.80 and 320,311,328.80 is: 480,466,993.20
Step by Step Solution
- Step 1: Write the proportion equation
352,056,071.20 : 528,084,106.80 = 320,311,328.80 : x - Step 2: Convert to fraction form
352,056,071.20/528,084,106.80 = 320,311,328.80/x - Step 3: Cross multiply
352,056,071.20x = 528,084,106.80 × 320,311,328.80 - Step 4: Simplify right side
352,056,071.20x = 169,151,321,967,269,120 - Step 5: Solve for x
x = 169,151,321,967,269,120/352,056,071.20 - Step 6: Final answer
x = 480,466,993.20
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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.