Finding the Fourth Proportional to 998,014,765.10, 1,497,022,147.65 and 739,734,439.10
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Solution
The fourth proportional to 998,014,765.10, 1,497,022,147.65 and 739,734,439.10 is: 1,109,601,658.65
Step by Step Solution
- Step 1: Write the proportion equation
998,014,765.10 : 1,497,022,147.65 = 739,734,439.10 : x - Step 2: Convert to fraction form
998,014,765.10/1,497,022,147.65 = 739,734,439.10/x - Step 3: Cross multiply
998,014,765.10x = 1,497,022,147.65 × 739,734,439.10 - Step 4: Simplify right side
998,014,765.10x = 1,107,398,838,712,150,272 - Step 5: Solve for x
x = 1,107,398,838,712,150,272/998,014,765.10 - Step 6: Final answer
x = 1,109,601,658.65
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Double scale
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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.