Finding the Fourth Proportional to 726,108,498.36, 1,086,908,225.28 and 393,288,921.99
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Solution
The fourth proportional to 726,108,498.36, 1,086,908,225.28 and 393,288,921.99 is: 588,712,245.05
Step by Step Solution
- Step 1: Write the proportion equation
726,108,498.36 : 1,086,908,225.28 = 393,288,921.99 : x - Step 2: Convert to fraction form
726,108,498.36/1,086,908,225.28 = 393,288,921.99/x - Step 3: Cross multiply
726,108,498.36x = 1,086,908,225.28 × 393,288,921.99 - Step 4: Simplify right side
726,108,498.36x = 427,468,964,222,435,264 - Step 5: Solve for x
x = 427,468,964,222,435,264/726,108,498.36 - Step 6: Final answer
x = 588,712,245.05
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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.