Finding the Fourth Proportional to 487,497,478.56, 672,747,798.12 and 264,479,148.76
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Solution
The fourth proportional to 487,497,478.56, 672,747,798.12 and 264,479,148.76 is: 364,981,918.48
Step by Step Solution
- Step 1: Write the proportion equation
487,497,478.56 : 672,747,798.12 = 264,479,148.76 : x - Step 2: Convert to fraction form
487,497,478.56/672,747,798.12 = 264,479,148.76/x - Step 3: Cross multiply
487,497,478.56x = 672,747,798.12 × 264,479,148.76 - Step 4: Simplify right side
487,497,478.56x = 177,927,764,976,941,920 - Step 5: Solve for x
x = 177,927,764,976,941,920/487,497,478.56 - Step 6: Final answer
x = 364,981,918.48
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1.5x scale
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.