Finding the Fourth Proportional to 821,801,406.24, 1,135,028,436.18 and 540,798,328.28
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Solution
The fourth proportional to 821,801,406.24, 1,135,028,436.18 and 540,798,328.28 is: 746,921,915.89
Step by Step Solution
- Step 1: Write the proportion equation
821,801,406.24 : 1,135,028,436.18 = 540,798,328.28 : x - Step 2: Convert to fraction form
821,801,406.24/1,135,028,436.18 = 540,798,328.28/x - Step 3: Cross multiply
821,801,406.24x = 1,135,028,436.18 × 540,798,328.28 - Step 4: Simplify right side
821,801,406.24x = 613,821,480,830,731,520 - Step 5: Solve for x
x = 613,821,480,830,731,520/821,801,406.24 - Step 6: Final answer
x = 746,921,915.89
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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.