Finding the Fourth Proportional to 18,591,857.49, 25,657,386.38 and 10,332,267.90
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Solution
The fourth proportional to 18,591,857.49, 25,657,386.38 and 10,332,267.90 is: 14,258,875.95
Step by Step Solution
- Step 1: Write the proportion equation
18,591,857.49 : 25,657,386.38 = 10,332,267.90 : x - Step 2: Convert to fraction form
18,591,857.49/25,657,386.38 = 10,332,267.90/x - Step 3: Cross multiply
18,591,857.49x = 25,657,386.38 × 10,332,267.90 - Step 4: Simplify right side
18,591,857.49x = 265,098,989,691,971.19 - Step 5: Solve for x
x = 265,098,989,691,971.19/18,591,857.49 - Step 6: Final answer
x = 14,258,875.95
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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.