Finding the Fourth Proportional to 136,142,562.16, 187,877,934.84 and 74,263,175.92
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Solution
The fourth proportional to 136,142,562.16, 187,877,934.84 and 74,263,175.92 is: 102,483,836.83
Step by Step Solution
- Step 1: Write the proportion equation
136,142,562.16 : 187,877,934.84 = 74,263,175.92 : x - Step 2: Convert to fraction form
136,142,562.16/187,877,934.84 = 74,263,175.92/x - Step 3: Cross multiply
136,142,562.16x = 187,877,934.84 × 74,263,175.92 - Step 4: Simplify right side
136,142,562.16x = 13,952,412,126,509,218 - Step 5: Solve for x
x = 13,952,412,126,509,218/136,142,562.16 - Step 6: Final answer
x = 102,483,836.83
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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.