Finding the Fourth Proportional to 741,983,359.80, 1,112,975,039.70 and 257,309,167.80
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Solution
The fourth proportional to 741,983,359.80, 1,112,975,039.70 and 257,309,167.80 is: 385,963,751.70
Step by Step Solution
- Step 1: Write the proportion equation
741,983,359.80 : 1,112,975,039.70 = 257,309,167.80 : x - Step 2: Convert to fraction form
741,983,359.80/1,112,975,039.70 = 257,309,167.80/x - Step 3: Cross multiply
741,983,359.80x = 1,112,975,039.70 × 257,309,167.80 - Step 4: Simplify right side
741,983,359.80x = 286,378,681,247,378,976 - Step 5: Solve for x
x = 286,378,681,247,378,976/741,983,359.80 - Step 6: Final answer
x = 385,963,751.70
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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.