Finding the Fourth Proportional to 33,221,676.80, 49,778,860.80 and 18,801,862.40
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Solution
The fourth proportional to 33,221,676.80, 49,778,860.80 and 18,801,862.40 is: 28,172,427.80
Step by Step Solution
- Step 1: Write the proportion equation
33,221,676.80 : 49,778,860.80 = 18,801,862.40 : x - Step 2: Convert to fraction form
33,221,676.80/49,778,860.80 = 18,801,862.40/x - Step 3: Cross multiply
33,221,676.80x = 49,778,860.80 × 18,801,862.40 - Step 4: Simplify right side
33,221,676.80x = 935,935,291,190,353.75 - Step 5: Solve for x
x = 935,935,291,190,353.75/33,221,676.80 - Step 6: Final answer
x = 28,172,427.80
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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.