Finding the Fourth Proportional to 748,977,895.80, 1,123,466,843.70 and 658,278,631.80
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Solution
The fourth proportional to 748,977,895.80, 1,123,466,843.70 and 658,278,631.80 is: 987,417,947.70
Step by Step Solution
- Step 1: Write the proportion equation
748,977,895.80 : 1,123,466,843.70 = 658,278,631.80 : x - Step 2: Convert to fraction form
748,977,895.80/1,123,466,843.70 = 658,278,631.80/x - Step 3: Cross multiply
748,977,895.80x = 1,123,466,843.70 × 658,278,631.80 - Step 4: Simplify right side
748,977,895.80x = 739,554,216,743,500,416 - Step 5: Solve for x
x = 739,554,216,743,500,416/748,977,895.80 - Step 6: Final answer
x = 987,417,947.70
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Similar ratio
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1.5x scale
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.