Finding the Fourth Proportional to 57,884,861.70, 79,881,248.61 and 31,781,062.17
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Solution
The fourth proportional to 57,884,861.70, 79,881,248.61 and 31,781,062.17 is: 43,857,942.37
Step by Step Solution
- Step 1: Write the proportion equation
57,884,861.70 : 79,881,248.61 = 31,781,062.17 : x - Step 2: Convert to fraction form
57,884,861.70/79,881,248.61 = 31,781,062.17/x - Step 3: Cross multiply
57,884,861.70x = 79,881,248.61 × 31,781,062.17 - Step 4: Simplify right side
57,884,861.70x = 2,538,710,928,291,636 - Step 5: Solve for x
x = 2,538,710,928,291,636/57,884,861.70 - Step 6: Final answer
x = 43,857,942.37
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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.