Finding the Fourth Proportional to 1,176,715,972.66, 1,623,747,872.92 and 724,522,132.66
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Solution
The fourth proportional to 1,176,715,972.66, 1,623,747,872.92 and 724,522,132.66 is: 999,766,552.95
Step by Step Solution
- Step 1: Write the proportion equation
1,176,715,972.66 : 1,623,747,872.92 = 724,522,132.66 : x - Step 2: Convert to fraction form
1,176,715,972.66/1,623,747,872.92 = 724,522,132.66/x - Step 3: Cross multiply
1,176,715,972.66x = 1,623,747,872.92 × 724,522,132.66 - Step 4: Simplify right side
1,176,715,972.66x = 1,176,441,271,790,137,088 - Step 5: Solve for x
x = 1,176,441,271,790,137,088/1,176,715,972.66 - Step 6: Final answer
x = 999,766,552.95
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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.