Finding the Fourth Proportional to 605,232,000.30, 907,848,000.45 and 299,121,984.30
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Solution
The fourth proportional to 605,232,000.30, 907,848,000.45 and 299,121,984.30 is: 448,682,976.45
Step by Step Solution
- Step 1: Write the proportion equation
605,232,000.30 : 907,848,000.45 = 299,121,984.30 : x - Step 2: Convert to fraction form
605,232,000.30/907,848,000.45 = 299,121,984.30/x - Step 3: Cross multiply
605,232,000.30x = 907,848,000.45 × 299,121,984.30 - Step 4: Simplify right side
605,232,000.30x = 271,557,295,337,391,328 - Step 5: Solve for x
x = 271,557,295,337,391,328/605,232,000.30 - Step 6: Final answer
x = 448,682,976.45
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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.