Finding the Fourth Proportional to 1,026,436,478.40, 1,539,087,847.20 and 335,988,331.20
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Solution
The fourth proportional to 1,026,436,478.40, 1,539,087,847.20 and 335,988,331.20 is: 503,796,940.42
Step by Step Solution
- Step 1: Write the proportion equation
1,026,436,478.40 : 1,539,087,847.20 = 335,988,331.20 : x - Step 2: Convert to fraction form
1,026,436,478.40/1,539,087,847.20 = 335,988,331.20/x - Step 3: Cross multiply
1,026,436,478.40x = 1,539,087,847.20 × 335,988,331.20 - Step 4: Simplify right side
1,026,436,478.40x = 517,115,557,350,928,576 - Step 5: Solve for x
x = 517,115,557,350,928,576/1,026,436,478.40 - Step 6: Final answer
x = 503,796,940.42
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1.5x scale
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.