Finding the Fourth Proportional to 538,312,584.72, 807,612,421.56 and 193,269,201.06
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Solution
The fourth proportional to 538,312,584.72, 807,612,421.56 and 193,269,201.06 is: 289,955,338.05
Step by Step Solution
- Step 1: Write the proportion equation
538,312,584.72 : 807,612,421.56 = 193,269,201.06 : x - Step 2: Convert to fraction form
538,312,584.72/807,612,421.56 = 193,269,201.06/x - Step 3: Cross multiply
538,312,584.72x = 807,612,421.56 × 193,269,201.06 - Step 4: Simplify right side
538,312,584.72x = 156,086,607,481,033,120 - Step 5: Solve for x
x = 156,086,607,481,033,120/538,312,584.72 - Step 6: Final answer
x = 289,955,338.05
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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.