Finding the Fourth Proportional to 85,613,305.80, 128,207,382.30 and 68,607,193.80
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Solution
The fourth proportional to 85,613,305.80, 128,207,382.30 and 68,607,193.80 is: 102,740,440.19
Step by Step Solution
- Step 1: Write the proportion equation
85,613,305.80 : 128,207,382.30 = 68,607,193.80 : x - Step 2: Convert to fraction form
85,613,305.80/128,207,382.30 = 68,607,193.80/x - Step 3: Cross multiply
85,613,305.80x = 128,207,382.30 × 68,607,193.80 - Step 4: Simplify right side
85,613,305.80x = 8,795,948,724,046,789 - Step 5: Solve for x
x = 8,795,948,724,046,789/85,613,305.80 - Step 6: Final answer
x = 102,740,440.19
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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.