Finding the Fourth Proportional to 547,438,791.09, 755,449,924.16 and 321,374,139.67
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Solution
The fourth proportional to 547,438,791.09, 755,449,924.16 and 321,374,139.67 is: 443,487,150.33
Step by Step Solution
- Step 1: Write the proportion equation
547,438,791.09 : 755,449,924.16 = 321,374,139.67 : x - Step 2: Convert to fraction form
547,438,791.09/755,449,924.16 = 321,374,139.67/x - Step 3: Cross multiply
547,438,791.09x = 755,449,924.16 × 321,374,139.67 - Step 4: Simplify right side
547,438,791.09x = 242,782,069,441,968,480 - Step 5: Solve for x
x = 242,782,069,441,968,480/547,438,791.09 - Step 6: Final answer
x = 443,487,150.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.