Finding the Fourth Proportional to 446,943,905.70, 670,415,858.55 and 446,943,905.70
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Solution
The fourth proportional to 446,943,905.70, 670,415,858.55 and 446,943,905.70 is: 670,415,858.55
Step by Step Solution
- Step 1: Write the proportion equation
446,943,905.70 : 670,415,858.55 = 446,943,905.70 : x - Step 2: Convert to fraction form
446,943,905.70/670,415,858.55 = 446,943,905.70/x - Step 3: Cross multiply
446,943,905.70x = 670,415,858.55 × 446,943,905.70 - Step 4: Simplify right side
446,943,905.70x = 299,638,282,263,555,712 - Step 5: Solve for x
x = 299,638,282,263,555,712/446,943,905.70 - Step 6: Final answer
x = 670,415,858.55
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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.