Finding the Fourth Proportional to 56,638,672.14, 78,139,236.53 and 31,853,177.31
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Solution
The fourth proportional to 56,638,672.14, 78,139,236.53 and 31,853,177.31 is: 43,944,938.36
Step by Step Solution
- Step 1: Write the proportion equation
56,638,672.14 : 78,139,236.53 = 31,853,177.31 : x - Step 2: Convert to fraction form
56,638,672.14/78,139,236.53 = 31,853,177.31/x - Step 3: Cross multiply
56,638,672.14x = 78,139,236.53 × 31,853,177.31 - Step 4: Simplify right side
56,638,672.14x = 2,488,982,956,430,774 - Step 5: Solve for x
x = 2,488,982,956,430,774/56,638,672.14 - Step 6: Final answer
x = 43,944,938.36
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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.