Finding the Fourth Proportional to 690,965,028.70, 1,036,447,543.05 and 230,903,198.02
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Solution
The fourth proportional to 690,965,028.70, 1,036,447,543.05 and 230,903,198.02 is: 346,354,797.02
Step by Step Solution
- Step 1: Write the proportion equation
690,965,028.70 : 1,036,447,543.05 = 230,903,198.02 : x - Step 2: Convert to fraction form
690,965,028.70/1,036,447,543.05 = 230,903,198.02/x - Step 3: Cross multiply
690,965,028.70x = 1,036,447,543.05 × 230,903,198.02 - Step 4: Simplify right side
690,965,028.70x = 239,319,052,266,762,240 - Step 5: Solve for x
x = 239,319,052,266,762,240/690,965,028.70 - Step 6: Final answer
x = 346,354,797.02
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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.