Finding the Fourth Proportional to 982,486,329.40, 1,469,698,415.70 and 885,740,447.80
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Solution
The fourth proportional to 982,486,329.40, 1,469,698,415.70 and 885,740,447.80 is: 1,324,976,535.45
Step by Step Solution
- Step 1: Write the proportion equation
982,486,329.40 : 1,469,698,415.70 = 885,740,447.80 : x - Step 2: Convert to fraction form
982,486,329.40/1,469,698,415.70 = 885,740,447.80/x - Step 3: Cross multiply
982,486,329.40x = 1,469,698,415.70 × 885,740,447.80 - Step 4: Simplify right side
982,486,329.40x = 1,301,771,332,853,068,544 - Step 5: Solve for x
x = 1,301,771,332,853,068,544/982,486,329.40 - Step 6: Final answer
x = 1,324,976,535.45
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1.5x scale
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.