Finding the Fourth Proportional to 129,030,407.70, 193,545,611.55 and 97,179,911.70
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Solution
The fourth proportional to 129,030,407.70, 193,545,611.55 and 97,179,911.70 is: 145,769,867.55
Step by Step Solution
- Step 1: Write the proportion equation
129,030,407.70 : 193,545,611.55 = 97,179,911.70 : x - Step 2: Convert to fraction form
129,030,407.70/193,545,611.55 = 97,179,911.70/x - Step 3: Cross multiply
129,030,407.70x = 193,545,611.55 × 97,179,911.70 - Step 4: Simplify right side
129,030,407.70x = 18,808,745,440,351,500 - Step 5: Solve for x
x = 18,808,745,440,351,500/129,030,407.70 - Step 6: Final answer
x = 145,769,867.55
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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.