Finding the Fourth Proportional to 998,487,190.60, 1,497,730,785.90 and 969,789,376.60
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Solution
The fourth proportional to 998,487,190.60, 1,497,730,785.90 and 969,789,376.60 is: 1,454,684,064.90
Step by Step Solution
- Step 1: Write the proportion equation
998,487,190.60 : 1,497,730,785.90 = 969,789,376.60 : x - Step 2: Convert to fraction form
998,487,190.60/1,497,730,785.90 = 969,789,376.60/x - Step 3: Cross multiply
998,487,190.60x = 1,497,730,785.90 × 969,789,376.60 - Step 4: Simplify right side
998,487,190.60x = 1,452,483,405,172,589,312 - Step 5: Solve for x
x = 1,452,483,405,172,589,312/998,487,190.60 - Step 6: Final answer
x = 1,454,684,064.90
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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.