Finding the Fourth Proportional to 1,444,658,422.70, 2,166,987,634.05 and 354,141,490.70
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Solution
The fourth proportional to 1,444,658,422.70, 2,166,987,634.05 and 354,141,490.70 is: 531,212,236.05
Step by Step Solution
- Step 1: Write the proportion equation
1,444,658,422.70 : 2,166,987,634.05 = 354,141,490.70 : x - Step 2: Convert to fraction form
1,444,658,422.70/2,166,987,634.05 = 354,141,490.70/x - Step 3: Cross multiply
1,444,658,422.70x = 2,166,987,634.05 × 354,141,490.70 - Step 4: Simplify right side
1,444,658,422.70x = 767,420,231,050,933,120 - Step 5: Solve for x
x = 767,420,231,050,933,120/1,444,658,422.70 - Step 6: Final answer
x = 531,212,236.05
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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.