Finding the Fourth Proportional to 15,603,518.05, 21,534,475.70 and 8,988,335.12
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Solution
The fourth proportional to 15,603,518.05, 21,534,475.70 and 8,988,335.12 is: 12,404,836.12
Step by Step Solution
- Step 1: Write the proportion equation
15,603,518.05 : 21,534,475.70 = 8,988,335.12 : x - Step 2: Convert to fraction form
15,603,518.05/21,534,475.70 = 8,988,335.12/x - Step 3: Cross multiply
15,603,518.05x = 21,534,475.70 × 8,988,335.12 - Step 4: Simplify right side
15,603,518.05x = 193,559,084,301,403.62 - Step 5: Solve for x
x = 193,559,084,301,403.62/15,603,518.05 - Step 6: Final answer
x = 12,404,836.12
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1.5x scale
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.