Finding the Fourth Proportional to 290,020,346.87, 435,026,260.80 and 71,670,683.07
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Solution
The fourth proportional to 290,020,346.87, 435,026,260.80 and 71,670,683.07 is: 107,504,971.99
Step by Step Solution
- Step 1: Write the proportion equation
290,020,346.87 : 435,026,260.80 = 71,670,683.07 : x - Step 2: Convert to fraction form
290,020,346.87/435,026,260.80 = 71,670,683.07/x - Step 3: Cross multiply
290,020,346.87x = 435,026,260.80 × 71,670,683.07 - Step 4: Simplify right side
290,020,346.87x = 31,178,629,264,923,964 - Step 5: Solve for x
x = 31,178,629,264,923,964/290,020,346.87 - Step 6: Final answer
x = 107,504,971.99
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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.