Finding the Fourth Proportional to 808,517,848.60, 1,212,776,772.90 and 801,715,403.80
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Solution
The fourth proportional to 808,517,848.60, 1,212,776,772.90 and 801,715,403.80 is: 1,202,573,105.70
Step by Step Solution
- Step 1: Write the proportion equation
808,517,848.60 : 1,212,776,772.90 = 801,715,403.80 : x - Step 2: Convert to fraction form
808,517,848.60/1,212,776,772.90 = 801,715,403.80/x - Step 3: Cross multiply
808,517,848.60x = 1,212,776,772.90 × 801,715,403.80 - Step 4: Simplify right side
808,517,848.60x = 972,301,820,204,784,384 - Step 5: Solve for x
x = 972,301,820,204,784,384/808,517,848.60 - Step 6: Final answer
x = 1,202,573,105.70
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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.