Finding the Fourth Proportional to 2,490,474,358.19, 3,735,718,628.94 and 719,989,207.07
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Solution
The fourth proportional to 2,490,474,358.19, 3,735,718,628.94 and 719,989,207.07 is: 1,079,985,860.78
Step by Step Solution
- Step 1: Write the proportion equation
2,490,474,358.19 : 3,735,718,628.94 = 719,989,207.07 : x - Step 2: Convert to fraction form
2,490,474,358.19/3,735,718,628.94 = 719,989,207.07/x - Step 3: Cross multiply
2,490,474,358.19x = 3,735,718,628.94 × 719,989,207.07 - Step 4: Simplify right side
2,490,474,358.19x = 2,689,677,093,487,138,304 - Step 5: Solve for x
x = 2,689,677,093,487,138,304/2,490,474,358.19 - Step 6: Final answer
x = 1,079,985,860.78
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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.