Finding the Fourth Proportional to 808,517,853.60, 1,212,776,780.40 and 801,715,408.80
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Solution
The fourth proportional to 808,517,853.60, 1,212,776,780.40 and 801,715,408.80 is: 1,202,573,113.20
Step by Step Solution
- Step 1: Write the proportion equation
808,517,853.60 : 1,212,776,780.40 = 801,715,408.80 : x - Step 2: Convert to fraction form
808,517,853.60/1,212,776,780.40 = 801,715,408.80/x - Step 3: Cross multiply
808,517,853.60x = 1,212,776,780.40 × 801,715,408.80 - Step 4: Simplify right side
808,517,853.60x = 972,301,832,281,533,824 - Step 5: Solve for x
x = 972,301,832,281,533,824/808,517,853.60 - Step 6: Final answer
x = 1,202,573,113.20
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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.