Finding the Fourth Proportional to 944,786,302.20, 1,417,179,453.30 and 715,203,790.20
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Solution
The fourth proportional to 944,786,302.20, 1,417,179,453.30 and 715,203,790.20 is: 1,072,805,685.30
Step by Step Solution
- Step 1: Write the proportion equation
944,786,302.20 : 1,417,179,453.30 = 715,203,790.20 : x - Step 2: Convert to fraction form
944,786,302.20/1,417,179,453.30 = 715,203,790.20/x - Step 3: Cross multiply
944,786,302.20x = 1,417,179,453.30 × 715,203,790.20 - Step 4: Simplify right side
944,786,302.20x = 1,013,572,116,393,723,904 - Step 5: Solve for x
x = 1,013,572,116,393,723,904/944,786,302.20 - Step 6: Final answer
x = 1,072,805,685.30
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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.