Finding the Fourth Proportional to 38,363,422.40, 57,450,655.20 and 18,145,044.80
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Solution
The fourth proportional to 38,363,422.40, 57,450,655.20 and 18,145,044.80 is: 27,172,881.02
Step by Step Solution
- Step 1: Write the proportion equation
38,363,422.40 : 57,450,655.20 = 18,145,044.80 : x - Step 2: Convert to fraction form
38,363,422.40/57,450,655.20 = 18,145,044.80/x - Step 3: Cross multiply
38,363,422.40x = 57,450,655.20 × 18,145,044.80 - Step 4: Simplify right side
38,363,422.40x = 1,042,444,712,393,353 - Step 5: Solve for x
x = 1,042,444,712,393,353/38,363,422.40 - Step 6: Final answer
x = 27,172,881.02
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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.