Finding the Fourth Proportional to 39,423,257.10, 54,403,515.81 and 22,019,856.30
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Solution
The fourth proportional to 39,423,257.10, 54,403,515.81 and 22,019,856.30 is: 30,387,078.30
Step by Step Solution
- Step 1: Write the proportion equation
39,423,257.10 : 54,403,515.81 = 22,019,856.30 : x - Step 2: Convert to fraction form
39,423,257.10/54,403,515.81 = 22,019,856.30/x - Step 3: Cross multiply
39,423,257.10x = 54,403,515.81 × 22,019,856.30 - Step 4: Simplify right side
39,423,257.10x = 1,197,957,600,350,978.25 - Step 5: Solve for x
x = 1,197,957,600,350,978.25/39,423,257.10 - Step 6: Final answer
x = 30,387,078.30
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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.