Finding the Fourth Proportional to 159,660,602.20, 239,490,903.30 and 143,504,795.80
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Solution
The fourth proportional to 159,660,602.20, 239,490,903.30 and 143,504,795.80 is: 215,257,193.70
Step by Step Solution
- Step 1: Write the proportion equation
159,660,602.20 : 239,490,903.30 = 143,504,795.80 : x - Step 2: Convert to fraction form
159,660,602.20/239,490,903.30 = 143,504,795.80/x - Step 3: Cross multiply
159,660,602.20x = 239,490,903.30 × 143,504,795.80 - Step 4: Simplify right side
159,660,602.20x = 34,368,093,174,024,052 - Step 5: Solve for x
x = 34,368,093,174,024,052/159,660,602.20 - Step 6: Final answer
x = 215,257,193.70
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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.