Finding the Fourth Proportional to 738,234,117.70, 1,107,351,176.55 and 726,754,992.10
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Solution
The fourth proportional to 738,234,117.70, 1,107,351,176.55 and 726,754,992.10 is: 1,090,132,488.15
Step by Step Solution
- Step 1: Write the proportion equation
738,234,117.70 : 1,107,351,176.55 = 726,754,992.10 : x - Step 2: Convert to fraction form
738,234,117.70/1,107,351,176.55 = 726,754,992.10/x - Step 3: Cross multiply
738,234,117.70x = 1,107,351,176.55 × 726,754,992.10 - Step 4: Simplify right side
738,234,117.70x = 804,772,995,565,520,896 - Step 5: Solve for x
x = 804,772,995,565,520,896/738,234,117.70 - Step 6: Final answer
x = 1,090,132,488.15
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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.