Finding the Fourth Proportional to 12,209,710.68, 18,314,376.47 and 4,128,361.74
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Solution
The fourth proportional to 12,209,710.68, 18,314,376.47 and 4,128,361.74 is: 6,192,478.52
Step by Step Solution
- Step 1: Write the proportion equation
12,209,710.68 : 18,314,376.47 = 4,128,361.74 : x - Step 2: Convert to fraction form
12,209,710.68/18,314,376.47 = 4,128,361.74/x - Step 3: Cross multiply
12,209,710.68x = 18,314,376.47 × 4,128,361.74 - Step 4: Simplify right side
12,209,710.68x = 75,608,371,121,025.17 - Step 5: Solve for x
x = 75,608,371,121,025.17/12,209,710.68 - Step 6: Final answer
x = 6,192,478.52
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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.