Finding the Fourth Proportional to 147,102,513.84, 203,002,838.28 and 81,025,357.68
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Solution
The fourth proportional to 147,102,513.84, 203,002,838.28 and 81,025,357.68 is: 111,815,747.76
Step by Step Solution
- Step 1: Write the proportion equation
147,102,513.84 : 203,002,838.28 = 81,025,357.68 : x - Step 2: Convert to fraction form
147,102,513.84/203,002,838.28 = 81,025,357.68/x - Step 3: Cross multiply
147,102,513.84x = 203,002,838.28 × 81,025,357.68 - Step 4: Simplify right side
147,102,513.84x = 16,448,377,581,692,198 - Step 5: Solve for x
x = 16,448,377,581,692,198/147,102,513.84 - Step 6: Final answer
x = 111,815,747.76
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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.