Finding the Fourth Proportional to 111,772,704.21, 154,219,946.44 and 93,958,653.12
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Solution
The fourth proportional to 111,772,704.21, 154,219,946.44 and 93,958,653.12 is: 129,640,761.17
Step by Step Solution
- Step 1: Write the proportion equation
111,772,704.21 : 154,219,946.44 = 93,958,653.12 : x - Step 2: Convert to fraction form
111,772,704.21/154,219,946.44 = 93,958,653.12/x - Step 3: Cross multiply
111,772,704.21x = 154,219,946.44 × 93,958,653.12 - Step 4: Simplify right side
111,772,704.21x = 14,490,298,451,740,940 - Step 5: Solve for x
x = 14,490,298,451,740,940/111,772,704.21 - Step 6: Final answer
x = 129,640,761.17
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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.