Finding the Fourth Proportional to 68,241,770.40, 102,362,655.60 and 45,283,519.20
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Solution
The fourth proportional to 68,241,770.40, 102,362,655.60 and 45,283,519.20 is: 67,925,278.80
Step by Step Solution
- Step 1: Write the proportion equation
68,241,770.40 : 102,362,655.60 = 45,283,519.20 : x - Step 2: Convert to fraction form
68,241,770.40/102,362,655.60 = 45,283,519.20/x - Step 3: Cross multiply
68,241,770.40x = 102,362,655.60 × 45,283,519.20 - Step 4: Simplify right side
68,241,770.40x = 4,635,341,280,225,588 - Step 5: Solve for x
x = 4,635,341,280,225,588/68,241,770.40 - Step 6: Final answer
x = 67,925,278.80
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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.