Finding the Fourth Proportional to 118,643,805.40, 177,965,708.10 and 93,163,408.60
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Solution
The fourth proportional to 118,643,805.40, 177,965,708.10 and 93,163,408.60 is: 139,745,112.90
Step by Step Solution
- Step 1: Write the proportion equation
118,643,805.40 : 177,965,708.10 = 93,163,408.60 : x - Step 2: Convert to fraction form
118,643,805.40/177,965,708.10 = 93,163,408.60/x - Step 3: Cross multiply
118,643,805.40x = 177,965,708.10 × 93,163,408.60 - Step 4: Simplify right side
118,643,805.40x = 16,579,891,980,508,628 - Step 5: Solve for x
x = 16,579,891,980,508,628/118,643,805.40 - Step 6: Final answer
x = 139,745,112.90
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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.