Finding the Fourth Proportional to 38,652,967.20, 57,986,449.20 and 19,435,360.80
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Solution
The fourth proportional to 38,652,967.20, 57,986,449.20 and 19,435,360.80 is: 29,156,560.11
Step by Step Solution
- Step 1: Write the proportion equation
38,652,967.20 : 57,986,449.20 = 19,435,360.80 : x - Step 2: Convert to fraction form
38,652,967.20/57,986,449.20 = 19,435,360.80/x - Step 3: Cross multiply
38,652,967.20x = 57,986,449.20 × 19,435,360.80 - Step 4: Simplify right side
38,652,967.20x = 1,126,987,561,712,871.50 - Step 5: Solve for x
x = 1,126,987,561,712,871.50/38,652,967.20 - Step 6: Final answer
x = 29,156,560.11
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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.