Finding the Fourth Proportional to 147,968,019.80, 221,952,029.70 and 130,052,115.80
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Solution
The fourth proportional to 147,968,019.80, 221,952,029.70 and 130,052,115.80 is: 195,078,173.70
Step by Step Solution
- Step 1: Write the proportion equation
147,968,019.80 : 221,952,029.70 = 130,052,115.80 : x - Step 2: Convert to fraction form
147,968,019.80/221,952,029.70 = 130,052,115.80/x - Step 3: Cross multiply
147,968,019.80x = 221,952,029.70 × 130,052,115.80 - Step 4: Simplify right side
147,968,019.80x = 28,865,331,068,589,436 - Step 5: Solve for x
x = 28,865,331,068,589,436/147,968,019.80 - Step 6: Final answer
x = 195,078,173.70
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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.