Finding the Fourth Proportional to 918,267,496.80, 1,378,836,135.90 and 530,847,007.80
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Solution
The fourth proportional to 918,267,496.80, 1,378,836,135.90 and 530,847,007.80 is: 797,100,016.65
Step by Step Solution
- Step 1: Write the proportion equation
918,267,496.80 : 1,378,836,135.90 = 530,847,007.80 : x - Step 2: Convert to fraction form
918,267,496.80/1,378,836,135.90 = 530,847,007.80/x - Step 3: Cross multiply
918,267,496.80x = 1,378,836,135.90 × 530,847,007.80 - Step 4: Simplify right side
918,267,496.80x = 731,951,036,989,029,248 - Step 5: Solve for x
x = 731,951,036,989,029,248/918,267,496.80 - Step 6: Final answer
x = 797,100,016.65
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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.