Finding the Fourth Proportional to 38,566,204.38, 53,221,216.05 and 21,162,840.84
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Solution
The fourth proportional to 38,566,204.38, 53,221,216.05 and 21,162,840.84 is: 29,204,640.25
Step by Step Solution
- Step 1: Write the proportion equation
38,566,204.38 : 53,221,216.05 = 21,162,840.84 : x - Step 2: Convert to fraction form
38,566,204.38/53,221,216.05 = 21,162,840.84/x - Step 3: Cross multiply
38,566,204.38x = 53,221,216.05 × 21,162,840.84 - Step 4: Simplify right side
38,566,204.38x = 1,126,312,124,577,403.50 - Step 5: Solve for x
x = 1,126,312,124,577,403.50/38,566,204.38 - Step 6: Final answer
x = 29,204,640.25
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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.