Finding the Fourth Proportional to 1,551,614,409.80, 2,141,273,238.20 and 846,811,625.12
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Solution
The fourth proportional to 1,551,614,409.80, 2,141,273,238.20 and 846,811,625.12 is: 1,168,624,794.42
Step by Step Solution
- Step 1: Write the proportion equation
1,551,614,409.80 : 2,141,273,238.20 = 846,811,625.12 : x - Step 2: Convert to fraction form
1,551,614,409.80/2,141,273,238.20 = 846,811,625.12/x - Step 3: Cross multiply
1,551,614,409.80x = 2,141,273,238.20 × 846,811,625.12 - Step 4: Simplify right side
1,551,614,409.80x = 1,813,255,070,666,106,880 - Step 5: Solve for x
x = 1,813,255,070,666,106,880/1,551,614,409.80 - Step 6: Final answer
x = 1,168,624,794.42
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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.