Finding the Fourth Proportional to 147,517,999.20, 221,276,998.80 and 79,493,551.20
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Solution
The fourth proportional to 147,517,999.20, 221,276,998.80 and 79,493,551.20 is: 119,240,326.80
Step by Step Solution
- Step 1: Write the proportion equation
147,517,999.20 : 221,276,998.80 = 79,493,551.20 : x - Step 2: Convert to fraction form
147,517,999.20/221,276,998.80 = 79,493,551.20/x - Step 3: Cross multiply
147,517,999.20x = 221,276,998.80 × 79,493,551.20 - Step 4: Simplify right side
147,517,999.20x = 17,590,094,433,490,140 - Step 5: Solve for x
x = 17,590,094,433,490,140/147,517,999.20 - Step 6: Final answer
x = 119,240,326.80
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1.5x scale
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.