Finding the Fourth Proportional to 504,650,609.20, 756,975,913.80 and 493,313,201.20
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Solution
The fourth proportional to 504,650,609.20, 756,975,913.80 and 493,313,201.20 is: 739,969,801.80
Step by Step Solution
- Step 1: Write the proportion equation
504,650,609.20 : 756,975,913.80 = 493,313,201.20 : x - Step 2: Convert to fraction form
504,650,609.20/756,975,913.80 = 493,313,201.20/x - Step 3: Cross multiply
504,650,609.20x = 756,975,913.80 × 493,313,201.20 - Step 4: Simplify right side
504,650,609.20x = 373,426,211,267,973,248 - Step 5: Solve for x
x = 373,426,211,267,973,248/504,650,609.20 - Step 6: Final answer
x = 739,969,801.80
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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.