Finding the Fourth Proportional to 209,035,020.38, 288,484,464.75 and 125,406,283.10
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Solution
The fourth proportional to 209,035,020.38, 288,484,464.75 and 125,406,283.10 is: 173,070,351.52
Step by Step Solution
- Step 1: Write the proportion equation
209,035,020.38 : 288,484,464.75 = 125,406,283.10 : x - Step 2: Convert to fraction form
209,035,020.38/288,484,464.75 = 125,406,283.10/x - Step 3: Cross multiply
209,035,020.38x = 288,484,464.75 × 125,406,283.10 - Step 4: Simplify right side
209,035,020.38x = 36,177,764,456,390,472 - Step 5: Solve for x
x = 36,177,764,456,390,472/209,035,020.38 - Step 6: Final answer
x = 173,070,351.52
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1.5x scale
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.