Finding the Fourth Proportional to 399,060,216.20, 598,590,324.30 and 262,899,345.80
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Solution
The fourth proportional to 399,060,216.20, 598,590,324.30 and 262,899,345.80 is: 394,349,018.70
Step by Step Solution
- Step 1: Write the proportion equation
399,060,216.20 : 598,590,324.30 = 262,899,345.80 : x - Step 2: Convert to fraction form
399,060,216.20/598,590,324.30 = 262,899,345.80/x - Step 3: Cross multiply
399,060,216.20x = 598,590,324.30 × 262,899,345.80 - Step 4: Simplify right side
399,060,216.20x = 157,369,004,660,679,840 - Step 5: Solve for x
x = 157,369,004,660,679,840/399,060,216.20 - Step 6: Final answer
x = 394,349,018.70
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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.