Finding the Fourth Proportional to 159,718,276.80, 239,577,415.20 and 79,096,708.80
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Solution
The fourth proportional to 159,718,276.80, 239,577,415.20 and 79,096,708.80 is: 118,645,063.20
Step by Step Solution
- Step 1: Write the proportion equation
159,718,276.80 : 239,577,415.20 = 79,096,708.80 : x - Step 2: Convert to fraction form
159,718,276.80/239,577,415.20 = 79,096,708.80/x - Step 3: Cross multiply
159,718,276.80x = 239,577,415.20 × 79,096,708.80 - Step 4: Simplify right side
159,718,276.80x = 18,949,785,045,131,092 - Step 5: Solve for x
x = 18,949,785,045,131,092/159,718,276.80 - Step 6: Final answer
x = 118,645,063.20
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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.