Finding the Fourth Proportional to 2,719,657,998.80, 4,079,486,998.20 and 2,127,845,301.20
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Solution
The fourth proportional to 2,719,657,998.80, 4,079,486,998.20 and 2,127,845,301.20 is: 3,191,767,951.80
Step by Step Solution
- Step 1: Write the proportion equation
2,719,657,998.80 : 4,079,486,998.20 = 2,127,845,301.20 : x - Step 2: Convert to fraction form
2,719,657,998.80/4,079,486,998.20 = 2,127,845,301.20/x - Step 3: Cross multiply
2,719,657,998.80x = 4,079,486,998.20 × 2,127,845,301.20 - Step 4: Simplify right side
2,719,657,998.80x = 8,680,517,240,426,362,880 - Step 5: Solve for x
x = 8,680,517,240,426,362,880/2,719,657,998.80 - Step 6: Final answer
x = 3,191,767,951.80
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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.