Finding the Fourth Proportional to 603,657,679.70, 905,486,519.55 and 603,657,679.70
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Solution
The fourth proportional to 603,657,679.70, 905,486,519.55 and 603,657,679.70 is: 905,486,519.55
Step by Step Solution
- Step 1: Write the proportion equation
603,657,679.70 : 905,486,519.55 = 603,657,679.70 : x - Step 2: Convert to fraction form
603,657,679.70/905,486,519.55 = 603,657,679.70/x - Step 3: Cross multiply
603,657,679.70x = 905,486,519.55 × 603,657,679.70 - Step 4: Simplify right side
603,657,679.70x = 546,603,891,391,181,696 - Step 5: Solve for x
x = 546,603,891,391,181,696/603,657,679.70 - Step 6: Final answer
x = 905,486,519.55
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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.