Finding the Fourth Proportional to 420,232,857.69, 631,305,880.32 and 304,006,710.99
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Solution
The fourth proportional to 420,232,857.69, 631,305,880.32 and 304,006,710.99 is: 456,702,089.79
Step by Step Solution
- Step 1: Write the proportion equation
420,232,857.69 : 631,305,880.32 = 304,006,710.99 : x - Step 2: Convert to fraction form
420,232,857.69/631,305,880.32 = 304,006,710.99/x - Step 3: Cross multiply
420,232,857.69x = 631,305,880.32 × 304,006,710.99 - Step 4: Simplify right side
420,232,857.69x = 191,921,224,304,729,792 - Step 5: Solve for x
x = 191,921,224,304,729,792/420,232,857.69 - Step 6: Final answer
x = 456,702,089.79
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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.