Finding the Fourth Proportional to 1,679,620,352.40, 2,519,430,528.60 and 759,526,707.60
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Solution
The fourth proportional to 1,679,620,352.40, 2,519,430,528.60 and 759,526,707.60 is: 1,139,290,061.40
Step by Step Solution
- Step 1: Write the proportion equation
1,679,620,352.40 : 2,519,430,528.60 = 759,526,707.60 : x - Step 2: Convert to fraction form
1,679,620,352.40/2,519,430,528.60 = 759,526,707.60/x - Step 3: Cross multiply
1,679,620,352.40x = 2,519,430,528.60 × 759,526,707.60 - Step 4: Simplify right side
1,679,620,352.40x = 1,913,574,774,414,485,504 - Step 5: Solve for x
x = 1,913,574,774,414,485,504/1,679,620,352.40 - Step 6: Final answer
x = 1,139,290,061.40
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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.