Finding the Fourth Proportional to 78,986,710.98, 118,461,457.53 and 44,457,810.66
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Solution
The fourth proportional to 78,986,710.98, 118,461,457.53 and 44,457,810.66 is: 66,676,241.92
Step by Step Solution
- Step 1: Write the proportion equation
78,986,710.98 : 118,461,457.53 = 44,457,810.66 : x - Step 2: Convert to fraction form
78,986,710.98/118,461,457.53 = 44,457,810.66/x - Step 3: Cross multiply
78,986,710.98x = 118,461,457.53 × 44,457,810.66 - Step 4: Simplify right side
78,986,710.98x = 5,266,537,049,376,371 - Step 5: Solve for x
x = 5,266,537,049,376,371/78,986,710.98 - Step 6: Final answer
x = 66,676,241.92
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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.