Finding the Fourth Proportional to 38,999,493.12, 53,818,639.36 and 21,595,466.24
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Solution
The fourth proportional to 38,999,493.12, 53,818,639.36 and 21,595,466.24 is: 29,801,377.31
Step by Step Solution
- Step 1: Write the proportion equation
38,999,493.12 : 53,818,639.36 = 21,595,466.24 : x - Step 2: Convert to fraction form
38,999,493.12/53,818,639.36 = 21,595,466.24/x - Step 3: Cross multiply
38,999,493.12x = 53,818,639.36 × 21,595,466.24 - Step 4: Simplify right side
38,999,493.12x = 1,162,238,609,381,615 - Step 5: Solve for x
x = 1,162,238,609,381,615/38,999,493.12 - Step 6: Final answer
x = 29,801,377.31
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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.