Finding the Fourth Proportional to 81,566,130.92, 122,345,878.24 and 20,153,743.05
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Solution
The fourth proportional to 81,566,130.92, 122,345,878.24 and 20,153,743.05 is: 30,229,794.71
Step by Step Solution
- Step 1: Write the proportion equation
81,566,130.92 : 122,345,878.24 = 20,153,743.05 : x - Step 2: Convert to fraction form
81,566,130.92/122,345,878.24 = 20,153,743.05/x - Step 3: Cross multiply
81,566,130.92x = 122,345,878.24 × 20,153,743.05 - Step 4: Simplify right side
81,566,130.92x = 2,465,727,393,225,162 - Step 5: Solve for x
x = 2,465,727,393,225,162/81,566,130.92 - Step 6: Final answer
x = 30,229,794.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.