Finding the Fourth Proportional to 276,163,458.28, 381,104,791.23 and 152,403,250.48
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Solution
The fourth proportional to 276,163,458.28, 381,104,791.23 and 152,403,250.48 is: 210,316,054.55
Step by Step Solution
- Step 1: Write the proportion equation
276,163,458.28 : 381,104,791.23 = 152,403,250.48 : x - Step 2: Convert to fraction form
276,163,458.28/381,104,791.23 = 152,403,250.48/x - Step 3: Cross multiply
276,163,458.28x = 381,104,791.23 × 152,403,250.48 - Step 4: Simplify right side
276,163,458.28x = 58,081,608,956,953,800 - Step 5: Solve for x
x = 58,081,608,956,953,800/276,163,458.28 - Step 6: Final answer
x = 210,316,054.55
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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.