Finding the Fourth Proportional to 129,449,432.80, 194,174,149.20 and 52,730,639.20
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Solution
The fourth proportional to 129,449,432.80, 194,174,149.20 and 52,730,639.20 is: 79,095,958.80
Step by Step Solution
- Step 1: Write the proportion equation
129,449,432.80 : 194,174,149.20 = 52,730,639.20 : x - Step 2: Convert to fraction form
129,449,432.80/194,174,149.20 = 52,730,639.20/x - Step 3: Cross multiply
129,449,432.80x = 194,174,149.20 × 52,730,639.20 - Step 4: Simplify right side
129,449,432.80x = 10,238,927,003,432,168 - Step 5: Solve for x
x = 10,238,927,003,432,168/129,449,432.80 - Step 6: Final answer
x = 79,095,958.80
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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.