Finding the Fourth Proportional to 57,731,202.76, 79,650,314.58 and 39,364,601.80
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Solution
The fourth proportional to 57,731,202.76, 79,650,314.58 and 39,364,601.80 is: 54,310,368.86
Step by Step Solution
- Step 1: Write the proportion equation
57,731,202.76 : 79,650,314.58 = 39,364,601.80 : x - Step 2: Convert to fraction form
57,731,202.76/79,650,314.58 = 39,364,601.80/x - Step 3: Cross multiply
57,731,202.76x = 79,650,314.58 × 39,364,601.80 - Step 4: Simplify right side
57,731,202.76x = 3,135,402,916,686,434 - Step 5: Solve for x
x = 3,135,402,916,686,434/57,731,202.76 - Step 6: Final answer
x = 54,310,368.86
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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.