Finding the Fourth Proportional to 657,707,101.39, 986,780,904.05 and 215,070,193.81
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Solution
The fourth proportional to 657,707,101.39, 986,780,904.05 and 215,070,193.81 is: 322,677,313.10
Step by Step Solution
- Step 1: Write the proportion equation
657,707,101.39 : 986,780,904.05 = 215,070,193.81 : x - Step 2: Convert to fraction form
657,707,101.39/986,780,904.05 = 215,070,193.81/x - Step 3: Cross multiply
657,707,101.39x = 986,780,904.05 × 215,070,193.81 - Step 4: Simplify right side
657,707,101.39x = 212,227,160,282,040,512 - Step 5: Solve for x
x = 212,227,160,282,040,512/657,707,101.39 - Step 6: Final answer
x = 322,677,313.10
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.