Finding the Fourth Proportional to 1,652,120,542.88, 2,279,839,804.80 and 909,419,541.92
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Solution
The fourth proportional to 1,652,120,542.88, 2,279,839,804.80 and 909,419,541.92 is: 1,254,951,328.99
Step by Step Solution
- Step 1: Write the proportion equation
1,652,120,542.88 : 2,279,839,804.80 = 909,419,541.92 : x - Step 2: Convert to fraction form
1,652,120,542.88/2,279,839,804.80 = 909,419,541.92/x - Step 3: Cross multiply
1,652,120,542.88x = 2,279,839,804.80 × 909,419,541.92 - Step 4: Simplify right side
1,652,120,542.88x = 2,073,330,870,932,198,400 - Step 5: Solve for x
x = 2,073,330,870,932,198,400/1,652,120,542.88 - Step 6: Final answer
x = 1,254,951,328.99
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1.5x scale
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.