Finding the Fourth Proportional to 1,813,761,811.20, 2,720,642,716.80 and 587,054,265.60
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Solution
The fourth proportional to 1,813,761,811.20, 2,720,642,716.80 and 587,054,265.60 is: 880,581,398.40
Step by Step Solution
- Step 1: Write the proportion equation
1,813,761,811.20 : 2,720,642,716.80 = 587,054,265.60 : x - Step 2: Convert to fraction form
1,813,761,811.20/2,720,642,716.80 = 587,054,265.60/x - Step 3: Cross multiply
1,813,761,811.20x = 2,720,642,716.80 × 587,054,265.60 - Step 4: Simplify right side
1,813,761,811.20x = 1,597,164,912,071,012,864 - Step 5: Solve for x
x = 1,597,164,912,071,012,864/1,813,761,811.20 - Step 6: Final answer
x = 880,581,398.40
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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.