Finding the Fourth Proportional to 143,716,319.34, 198,328,327.62 and 81,836,660.94
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Solution
The fourth proportional to 143,716,319.34, 198,328,327.62 and 81,836,660.94 is: 112,934,482.16
Step by Step Solution
- Step 1: Write the proportion equation
143,716,319.34 : 198,328,327.62 = 81,836,660.94 : x - Step 2: Convert to fraction form
143,716,319.34/198,328,327.62 = 81,836,660.94/x - Step 3: Cross multiply
143,716,319.34x = 198,328,327.62 × 81,836,660.94 - Step 4: Simplify right side
143,716,319.34x = 16,230,528,102,235,178 - Step 5: Solve for x
x = 16,230,528,102,235,178/143,716,319.34 - Step 6: Final answer
x = 112,934,482.16
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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.