Finding the Fourth Proportional to 290,020,352.11, 435,026,268.68 and 71,670,688.31
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Solution
The fourth proportional to 290,020,352.11, 435,026,268.68 and 71,670,688.31 is: 107,504,979.85
Step by Step Solution
- Step 1: Write the proportion equation
290,020,352.11 : 435,026,268.68 = 71,670,688.31 : x - Step 2: Convert to fraction form
290,020,352.11/435,026,268.68 = 71,670,688.31/x - Step 3: Cross multiply
290,020,352.11x = 435,026,268.68 × 71,670,688.31 - Step 4: Simplify right side
290,020,352.11x = 31,178,632,109,955,808 - Step 5: Solve for x
x = 31,178,632,109,955,808/290,020,352.11 - Step 6: Final answer
x = 107,504,979.85
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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.