Finding the Fourth Proportional to 143,144,599.80, 214,464,957.30 and 122,989,207.80
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Solution
The fourth proportional to 143,144,599.80, 214,464,957.30 and 122,989,207.80 is: 184,267,343.90
Step by Step Solution
- Step 1: Write the proportion equation
143,144,599.80 : 214,464,957.30 = 122,989,207.80 : x - Step 2: Convert to fraction form
143,144,599.80/214,464,957.30 = 122,989,207.80/x - Step 3: Cross multiply
143,144,599.80x = 214,464,957.30 × 122,989,207.80 - Step 4: Simplify right side
143,144,599.80x = 26,376,875,199,187,828 - Step 5: Solve for x
x = 26,376,875,199,187,828/143,144,599.80 - Step 6: Final answer
x = 184,267,343.90
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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.