Finding the Fourth Proportional to 147,823,791.99, 203,998,160.58 and 81,748,764.71
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Solution
The fourth proportional to 147,823,791.99, 203,998,160.58 and 81,748,764.71 is: 112,814,029.50
Step by Step Solution
- Step 1: Write the proportion equation
147,823,791.99 : 203,998,160.58 = 81,748,764.71 : x - Step 2: Convert to fraction form
147,823,791.99/203,998,160.58 = 81,748,764.71/x - Step 3: Cross multiply
147,823,791.99x = 203,998,160.58 × 81,748,764.71 - Step 4: Simplify right side
147,823,791.99x = 16,676,597,629,965,660 - Step 5: Solve for x
x = 16,676,597,629,965,660/147,823,791.99 - Step 6: Final answer
x = 112,814,029.50
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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.