Finding the Fourth Proportional to 55,707,493.92, 76,881,865.68 and 31,261,305.12
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Solution
The fourth proportional to 55,707,493.92, 76,881,865.68 and 31,261,305.12 is: 43,143,701.00
Step by Step Solution
- Step 1: Write the proportion equation
55,707,493.92 : 76,881,865.68 = 31,261,305.12 : x - Step 2: Convert to fraction form
55,707,493.92/76,881,865.68 = 31,261,305.12/x - Step 3: Cross multiply
55,707,493.92x = 76,881,865.68 × 31,261,305.12 - Step 4: Simplify right side
55,707,493.92x = 2,403,427,461,217,336.50 - Step 5: Solve for x
x = 2,403,427,461,217,336.50/55,707,493.92 - Step 6: Final answer
x = 43,143,701.00
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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.