Finding the Fourth Proportional to 19,936,362.40, 29,918,540.40 and 8,584,957.60
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Solution
The fourth proportional to 19,936,362.40, 29,918,540.40 and 8,584,957.60 is: 12,883,463.67
Step by Step Solution
- Step 1: Write the proportion equation
19,936,362.40 : 29,918,540.40 = 8,584,957.60 : x - Step 2: Convert to fraction form
19,936,362.40/29,918,540.40 = 8,584,957.60/x - Step 3: Cross multiply
19,936,362.40x = 29,918,540.40 × 8,584,957.60 - Step 4: Simplify right side
19,936,362.40x = 256,849,400,787,887.03 - Step 5: Solve for x
x = 256,849,400,787,887.03/19,936,362.40 - Step 6: Final answer
x = 12,883,463.67
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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.