Finding the Fourth Proportional to 372,093,686.68, 513,495,817.92 and 202,552,799.71
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Solution
The fourth proportional to 372,093,686.68, 513,495,817.92 and 202,552,799.71 is: 279,526,418.43
Step by Step Solution
- Step 1: Write the proportion equation
372,093,686.68 : 513,495,817.92 = 202,552,799.71 : x - Step 2: Convert to fraction form
372,093,686.68/513,495,817.92 = 202,552,799.71/x - Step 3: Cross multiply
372,093,686.68x = 513,495,817.92 × 202,552,799.71 - Step 4: Simplify right side
372,093,686.68x = 104,010,015,559,072,400 - Step 5: Solve for x
x = 104,010,015,559,072,400/372,093,686.68 - Step 6: Final answer
x = 279,526,418.43
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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.