Finding the Fourth Proportional to 944,786,809.20, 1,417,180,213.80 and 715,204,297.20
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Solution
The fourth proportional to 944,786,809.20, 1,417,180,213.80 and 715,204,297.20 is: 1,072,806,445.80
Step by Step Solution
- Step 1: Write the proportion equation
944,786,809.20 : 1,417,180,213.80 = 715,204,297.20 : x - Step 2: Convert to fraction form
944,786,809.20/1,417,180,213.80 = 715,204,297.20/x - Step 3: Cross multiply
944,786,809.20x = 1,417,180,213.80 × 715,204,297.20 - Step 4: Simplify right side
944,786,809.20x = 1,013,573,378,816,574,720 - Step 5: Solve for x
x = 1,013,573,378,816,574,720/944,786,809.20 - Step 6: Final answer
x = 1,072,806,445.80
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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.