Finding the Fourth Proportional to 901,905,830.37, 1,352,526,921.77 and 311,545,845.09
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Solution
The fourth proportional to 901,905,830.37, 1,352,526,921.77 and 311,545,845.09 is: 467,204,145.55
Step by Step Solution
- Step 1: Write the proportion equation
901,905,830.37 : 1,352,526,921.77 = 311,545,845.09 : x - Step 2: Convert to fraction form
901,905,830.37/1,352,526,921.77 = 311,545,845.09/x - Step 3: Cross multiply
901,905,830.37x = 1,352,526,921.77 × 311,545,845.09 - Step 4: Simplify right side
901,905,830.37x = 421,374,142,848,253,248 - Step 5: Solve for x
x = 421,374,142,848,253,248/901,905,830.37 - Step 6: Final answer
x = 467,204,145.55
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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.