Finding the Fourth Proportional to 405,453,863.11, 607,949,759.98 and 159,677,403.43
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Solution
The fourth proportional to 405,453,863.11, 607,949,759.98 and 159,677,403.43 is: 239,425,118.17
Step by Step Solution
- Step 1: Write the proportion equation
405,453,863.11 : 607,949,759.98 = 159,677,403.43 : x - Step 2: Convert to fraction form
405,453,863.11/607,949,759.98 = 159,677,403.43/x - Step 3: Cross multiply
405,453,863.11x = 607,949,759.98 × 159,677,403.43 - Step 4: Simplify right side
405,453,863.11x = 97,075,839,089,498,144 - Step 5: Solve for x
x = 97,075,839,089,498,144/405,453,863.11 - Step 6: Final answer
x = 239,425,118.17
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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.