Finding the Fourth Proportional to 328,074,030.18, 492,029,136.65 and 128,693,839.58
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Solution
The fourth proportional to 328,074,030.18, 492,029,136.65 and 128,693,839.58 is: 193,008,629.02
Step by Step Solution
- Step 1: Write the proportion equation
328,074,030.18 : 492,029,136.65 = 128,693,839.58 : x - Step 2: Convert to fraction form
328,074,030.18/492,029,136.65 = 128,693,839.58/x - Step 3: Cross multiply
328,074,030.18x = 492,029,136.65 × 128,693,839.58 - Step 4: Simplify right side
328,074,030.18x = 63,321,118,780,720,992 - Step 5: Solve for x
x = 63,321,118,780,720,992/328,074,030.18 - Step 6: Final answer
x = 193,008,629.02
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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.