Finding the Fourth Proportional to 1,328,544,037.80, 1,992,816,056.70 and 591,612,517.80
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Solution
The fourth proportional to 1,328,544,037.80, 1,992,816,056.70 and 591,612,517.80 is: 887,418,776.70
Step by Step Solution
- Step 1: Write the proportion equation
1,328,544,037.80 : 1,992,816,056.70 = 591,612,517.80 : x - Step 2: Convert to fraction form
1,328,544,037.80/1,992,816,056.70 = 591,612,517.80/x - Step 3: Cross multiply
1,328,544,037.80x = 1,992,816,056.70 × 591,612,517.80 - Step 4: Simplify right side
1,328,544,037.80x = 1,178,974,924,816,554,496 - Step 5: Solve for x
x = 1,178,974,924,816,554,496/1,328,544,037.80 - Step 6: Final answer
x = 887,418,776.70
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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.