Finding the Fourth Proportional to 824,402,285.08, 1,236,603,427.62 and 279,143,819.08
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Solution
The fourth proportional to 824,402,285.08, 1,236,603,427.62 and 279,143,819.08 is: 418,715,728.61
Step by Step Solution
- Step 1: Write the proportion equation
824,402,285.08 : 1,236,603,427.62 = 279,143,819.08 : x - Step 2: Convert to fraction form
824,402,285.08/1,236,603,427.62 = 279,143,819.08/x - Step 3: Cross multiply
824,402,285.08x = 1,236,603,427.62 × 279,143,819.08 - Step 4: Simplify right side
824,402,285.08x = 345,190,203,465,686,400 - Step 5: Solve for x
x = 345,190,203,465,686,400/824,402,285.08 - Step 6: Final answer
x = 418,715,728.61
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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.