Finding the Fourth Proportional to 487,497,468.18, 672,747,783.64 and 264,479,138.28
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Solution
The fourth proportional to 487,497,468.18, 672,747,783.64 and 264,479,138.28 is: 364,981,903.93
Step by Step Solution
- Step 1: Write the proportion equation
487,497,468.18 : 672,747,783.64 = 264,479,138.28 : x - Step 2: Convert to fraction form
487,497,468.18/672,747,783.64 = 264,479,138.28/x - Step 3: Cross multiply
487,497,468.18x = 672,747,783.64 × 264,479,138.28 - Step 4: Simplify right side
487,497,468.18x = 177,927,754,096,887,072 - Step 5: Solve for x
x = 177,927,754,096,887,072/487,497,468.18 - Step 6: Final answer
x = 364,981,903.93
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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.