Finding the Fourth Proportional to 19,819,140.89, 29,708,624.88 and 13,430,039.09
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Solution
The fourth proportional to 19,819,140.89, 29,708,624.88 and 13,430,039.09 is: 20,131,447.45
Step by Step Solution
- Step 1: Write the proportion equation
19,819,140.89 : 29,708,624.88 = 13,430,039.09 : x - Step 2: Convert to fraction form
19,819,140.89/29,708,624.88 = 13,430,039.09/x - Step 3: Cross multiply
19,819,140.89x = 29,708,624.88 × 13,430,039.09 - Step 4: Simplify right side
19,819,140.89x = 398,987,993,300,003.44 - Step 5: Solve for x
x = 398,987,993,300,003.44/19,819,140.89 - Step 6: Final answer
x = 20,131,447.45
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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.