Finding the Fourth Proportional to 30,522,637.09, 42,121,229.55 and 16,772,486.95
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Solution
The fourth proportional to 30,522,637.09, 42,121,229.55 and 16,772,486.95 is: 23,146,026.70
Step by Step Solution
- Step 1: Write the proportion equation
30,522,637.09 : 42,121,229.55 = 16,772,486.95 : x - Step 2: Convert to fraction form
30,522,637.09/42,121,229.55 = 16,772,486.95/x - Step 3: Cross multiply
30,522,637.09x = 42,121,229.55 × 16,772,486.95 - Step 4: Simplify right side
30,522,637.09x = 706,477,772,935,084.12 - Step 5: Solve for x
x = 706,477,772,935,084.12/30,522,637.09 - Step 6: Final answer
x = 23,146,026.70
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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.