Finding the Fourth Proportional to 54,965,837.20, 82,480,248.60 and 20,911,622.80
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Solution
The fourth proportional to 54,965,837.20, 82,480,248.60 and 20,911,622.80 is: 31,379,415.56
Step by Step Solution
- Step 1: Write the proportion equation
54,965,837.20 : 82,480,248.60 = 20,911,622.80 : x - Step 2: Convert to fraction form
54,965,837.20/82,480,248.60 = 20,911,622.80/x - Step 3: Cross multiply
54,965,837.20x = 82,480,248.60 × 20,911,622.80 - Step 4: Simplify right side
54,965,837.20x = 1,724,795,847,173,428 - Step 5: Solve for x
x = 1,724,795,847,173,428/54,965,837.20 - Step 6: Final answer
x = 31,379,415.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.