Finding the Fourth Proportional to 199,321,193.70, 278,369,426.70 and 199,321,193.70
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Solution
The fourth proportional to 199,321,193.70, 278,369,426.70 and 199,321,193.70 is: 278,369,426.70
Step by Step Solution
- Step 1: Write the proportion equation
199,321,193.70 : 278,369,426.70 = 199,321,193.70 : x - Step 2: Convert to fraction form
199,321,193.70/278,369,426.70 = 199,321,193.70/x - Step 3: Cross multiply
199,321,193.70x = 278,369,426.70 × 199,321,193.70 - Step 4: Simplify right side
199,321,193.70x = 55,484,926,419,428,648 - Step 5: Solve for x
x = 55,484,926,419,428,648/199,321,193.70 - Step 6: Final answer
x = 278,369,426.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.