Finding the Fourth Proportional to 21,089,430.81, 31,633,850.93 and 8,310,046.23
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Solution
The fourth proportional to 21,089,430.81, 31,633,850.93 and 8,310,046.23 is: 12,464,952.99
Step by Step Solution
- Step 1: Write the proportion equation
21,089,430.81 : 31,633,850.93 = 8,310,046.23 : x - Step 2: Convert to fraction form
21,089,430.81/31,633,850.93 = 8,310,046.23/x - Step 3: Cross multiply
21,089,430.81x = 31,633,850.93 × 8,310,046.23 - Step 4: Simplify right side
21,089,430.81x = 262,878,763,619,678.28 - Step 5: Solve for x
x = 262,878,763,619,678.28/21,089,430.81 - Step 6: Final answer
x = 12,464,952.99
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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.