Finding the Fourth Proportional to 2,875,764,301.20, 4,313,646,451.80 and 1,128,067,428.60
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Solution
The fourth proportional to 2,875,764,301.20, 4,313,646,451.80 and 1,128,067,428.60 is: 1,692,101,142.90
Step by Step Solution
- Step 1: Write the proportion equation
2,875,764,301.20 : 4,313,646,451.80 = 1,128,067,428.60 : x - Step 2: Convert to fraction form
2,875,764,301.20/4,313,646,451.80 = 1,128,067,428.60/x - Step 3: Cross multiply
2,875,764,301.20x = 4,313,646,451.80 × 1,128,067,428.60 - Step 4: Simplify right side
2,875,764,301.20x = 4,866,084,060,771,539,968 - Step 5: Solve for x
x = 4,866,084,060,771,539,968/2,875,764,301.20 - Step 6: Final answer
x = 1,692,101,142.90
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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.