Finding the Fourth Proportional to 79,718,864.40, 119,578,296.60 and 60,445,270.80
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Solution
The fourth proportional to 79,718,864.40, 119,578,296.60 and 60,445,270.80 is: 90,667,906.20
Step by Step Solution
- Step 1: Write the proportion equation
79,718,864.40 : 119,578,296.60 = 60,445,270.80 : x - Step 2: Convert to fraction form
79,718,864.40/119,578,296.60 = 60,445,270.80/x - Step 3: Cross multiply
79,718,864.40x = 119,578,296.60 × 60,445,270.80 - Step 4: Simplify right side
79,718,864.40x = 7,227,942,519,789,719 - Step 5: Solve for x
x = 7,227,942,519,789,719/79,718,864.40 - Step 6: Final answer
x = 90,667,906.20
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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.