Finding the Fourth Proportional to 1,396,764,190.95, 1,927,581,116.30 and 761,719,331.84
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Solution
The fourth proportional to 1,396,764,190.95, 1,927,581,116.30 and 761,719,331.84 is: 1,051,198,054.39
Step by Step Solution
- Step 1: Write the proportion equation
1,396,764,190.95 : 1,927,581,116.30 = 761,719,331.84 : x - Step 2: Convert to fraction form
1,396,764,190.95/1,927,581,116.30 = 761,719,331.84/x - Step 3: Cross multiply
1,396,764,190.95x = 1,927,581,116.30 × 761,719,331.84 - Step 4: Simplify right side
1,396,764,190.95x = 1,468,275,799,961,990,912 - Step 5: Solve for x
x = 1,468,275,799,961,990,912/1,396,764,190.95 - Step 6: Final answer
x = 1,051,198,054.39
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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.