Finding the Fourth Proportional to 766,441,833.18, 1,149,646,251.69 and 213,729,550.62
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Solution
The fourth proportional to 766,441,833.18, 1,149,646,251.69 and 213,729,550.62 is: 320,589,725.28
Step by Step Solution
- Step 1: Write the proportion equation
766,441,833.18 : 1,149,646,251.69 = 213,729,550.62 : x - Step 2: Convert to fraction form
766,441,833.18/1,149,646,251.69 = 213,729,550.62/x - Step 3: Cross multiply
766,441,833.18x = 1,149,646,251.69 × 213,729,550.62 - Step 4: Simplify right side
766,441,833.18x = 245,713,376,745,671,136 - Step 5: Solve for x
x = 245,713,376,745,671,136/766,441,833.18 - Step 6: Final answer
x = 320,589,725.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.