Finding the Fourth Proportional to 161,759,049.80, 242,638,574.70 and 71,059,785.80
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Solution
The fourth proportional to 161,759,049.80, 242,638,574.70 and 71,059,785.80 is: 106,589,678.70
Step by Step Solution
- Step 1: Write the proportion equation
161,759,049.80 : 242,638,574.70 = 71,059,785.80 : x - Step 2: Convert to fraction form
161,759,049.80/242,638,574.70 = 71,059,785.80/x - Step 3: Cross multiply
161,759,049.80x = 242,638,574.70 × 71,059,785.80 - Step 4: Simplify right side
161,759,049.80x = 17,241,845,144,999,298 - Step 5: Solve for x
x = 17,241,845,144,999,298/161,759,049.80 - Step 6: Final answer
x = 106,589,678.70
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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.