Finding the Fourth Proportional to 129,820,076.80, 194,730,115.20 and 38,943,665.80
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Solution
The fourth proportional to 129,820,076.80, 194,730,115.20 and 38,943,665.80 is: 58,415,498.70
Step by Step Solution
- Step 1: Write the proportion equation
129,820,076.80 : 194,730,115.20 = 38,943,665.80 : x - Step 2: Convert to fraction form
129,820,076.80/194,730,115.20 = 38,943,665.80/x - Step 3: Cross multiply
129,820,076.80x = 194,730,115.20 × 38,943,665.80 - Step 4: Simplify right side
129,820,076.80x = 7,583,504,527,544,299 - Step 5: Solve for x
x = 7,583,504,527,544,299/129,820,076.80 - Step 6: Final answer
x = 58,415,498.70
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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.