Finding the Fourth Proportional to 20,824,264.80, 31,241,062.80 and 8,043,631.20
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Solution
The fourth proportional to 20,824,264.80, 31,241,062.80 and 8,043,631.20 is: 12,067,248.95
Step by Step Solution
- Step 1: Write the proportion equation
20,824,264.80 : 31,241,062.80 = 8,043,631.20 : x - Step 2: Convert to fraction form
20,824,264.80/31,241,062.80 = 8,043,631.20/x - Step 3: Cross multiply
20,824,264.80x = 31,241,062.80 × 8,043,631.20 - Step 4: Simplify right side
20,824,264.80x = 251,291,587,459,239.38 - Step 5: Solve for x
x = 251,291,587,459,239.38/20,824,264.80 - Step 6: Final answer
x = 12,067,248.95
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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.