Finding the Fourth Proportional to 129,445,508.40, 194,242,912.20 and 48,724,407.60
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Solution
The fourth proportional to 129,445,508.40, 194,242,912.20 and 48,724,407.60 is: 73,114,710.15
Step by Step Solution
- Step 1: Write the proportion equation
129,445,508.40 : 194,242,912.20 = 48,724,407.60 : x - Step 2: Convert to fraction form
129,445,508.40/194,242,912.20 = 48,724,407.60/x - Step 3: Cross multiply
129,445,508.40x = 194,242,912.20 × 48,724,407.60 - Step 4: Simplify right side
129,445,508.40x = 9,464,370,827,443,812 - Step 5: Solve for x
x = 9,464,370,827,443,812/129,445,508.40 - Step 6: Final answer
x = 73,114,710.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.