Finding the Fourth Proportional to 243,163,896.66, 335,565,733.80 and 131,654,723.82
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Solution
The fourth proportional to 243,163,896.66, 335,565,733.80 and 131,654,723.82 is: 181,683,278.70
Step by Step Solution
- Step 1: Write the proportion equation
243,163,896.66 : 335,565,733.80 = 131,654,723.82 : x - Step 2: Convert to fraction form
243,163,896.66/335,565,733.80 = 131,654,723.82/x - Step 3: Cross multiply
243,163,896.66x = 335,565,733.80 × 131,654,723.82 - Step 4: Simplify right side
243,163,896.66x = 44,178,814,006,894,640 - Step 5: Solve for x
x = 44,178,814,006,894,640/243,163,896.66 - Step 6: Final answer
x = 181,683,278.70
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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.