Finding the Fourth Proportional to 341,017,982.28, 470,497,388.94 and 208,721,059.74
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Solution
The fourth proportional to 341,017,982.28, 470,497,388.94 and 208,721,059.74 is: 287,969,311.67
Step by Step Solution
- Step 1: Write the proportion equation
341,017,982.28 : 470,497,388.94 = 208,721,059.74 : x - Step 2: Convert to fraction form
341,017,982.28/470,497,388.94 = 208,721,059.74/x - Step 3: Cross multiply
341,017,982.28x = 470,497,388.94 × 208,721,059.74 - Step 4: Simplify right side
341,017,982.28x = 98,202,713,624,459,760 - Step 5: Solve for x
x = 98,202,713,624,459,760/341,017,982.28 - Step 6: Final answer
x = 287,969,311.67
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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.