Finding the Fourth Proportional to 653,418,163.80, 980,127,245.70 and 653,418,163.80
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Solution
The fourth proportional to 653,418,163.80, 980,127,245.70 and 653,418,163.80 is: 980,127,245.70
Step by Step Solution
- Step 1: Write the proportion equation
653,418,163.80 : 980,127,245.70 = 653,418,163.80 : x - Step 2: Convert to fraction form
653,418,163.80/980,127,245.70 = 653,418,163.80/x - Step 3: Cross multiply
653,418,163.80x = 980,127,245.70 × 653,418,163.80 - Step 4: Simplify right side
653,418,163.80x = 640,432,945,175,645,440 - Step 5: Solve for x
x = 640,432,945,175,645,440/653,418,163.80 - Step 6: Final answer
x = 980,127,245.70
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Double scale
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Similar ratio
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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.