Finding the Fourth Proportional to 255,405,138.17, 352,459,077.17 and 137,930,457.11
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Solution
The fourth proportional to 255,405,138.17, 352,459,077.17 and 137,930,457.11 is: 190,344,023.51
Step by Step Solution
- Step 1: Write the proportion equation
255,405,138.17 : 352,459,077.17 = 137,930,457.11 : x - Step 2: Convert to fraction form
255,405,138.17/352,459,077.17 = 137,930,457.11/x - Step 3: Cross multiply
255,405,138.17x = 352,459,077.17 × 137,930,457.11 - Step 4: Simplify right side
255,405,138.17x = 48,614,841,624,174,920 - Step 5: Solve for x
x = 48,614,841,624,174,920/255,405,138.17 - Step 6: Final answer
x = 190,344,023.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.