Finding the Fourth Proportional to 873,255,805.60, 1,309,883,708.40 and 801,830,135.20
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Solution
The fourth proportional to 873,255,805.60, 1,309,883,708.40 and 801,830,135.20 is: 1,202,745,202.80
Step by Step Solution
- Step 1: Write the proportion equation
873,255,805.60 : 1,309,883,708.40 = 801,830,135.20 : x - Step 2: Convert to fraction form
873,255,805.60/1,309,883,708.40 = 801,830,135.20/x - Step 3: Cross multiply
873,255,805.60x = 1,309,883,708.40 × 801,830,135.20 - Step 4: Simplify right side
873,255,805.60x = 1,050,304,231,002,649,472 - Step 5: Solve for x
x = 1,050,304,231,002,649,472/873,255,805.60 - Step 6: Final answer
x = 1,202,745,202.80
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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.