Finding the Fourth Proportional to 1,396,764,362.22, 1,927,581,352.70 and 761,719,503.03
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Solution
The fourth proportional to 1,396,764,362.22, 1,927,581,352.70 and 761,719,503.03 is: 1,051,198,290.67
Step by Step Solution
- Step 1: Write the proportion equation
1,396,764,362.22 : 1,927,581,352.70 = 761,719,503.03 : x - Step 2: Convert to fraction form
1,396,764,362.22/1,927,581,352.70 = 761,719,503.03/x - Step 3: Cross multiply
1,396,764,362.22x = 1,927,581,352.70 × 761,719,503.03 - Step 4: Simplify right side
1,396,764,362.22x = 1,468,276,310,028,539,136 - Step 5: Solve for x
x = 1,468,276,310,028,539,136/1,396,764,362.22 - Step 6: Final answer
x = 1,051,198,290.67
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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.