Finding the Fourth Proportional to 38,553,650.60, 53,203,722.89 and 20,912,508.99
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Solution
The fourth proportional to 38,553,650.60, 53,203,722.89 and 20,912,508.99 is: 28,859,091.58
Step by Step Solution
- Step 1: Write the proportion equation
38,553,650.60 : 53,203,722.89 = 20,912,508.99 : x - Step 2: Convert to fraction form
38,553,650.60/53,203,722.89 = 20,912,508.99/x - Step 3: Cross multiply
38,553,650.60x = 53,203,722.89 × 20,912,508.99 - Step 4: Simplify right side
38,553,650.60x = 1,112,623,333,134,031.12 - Step 5: Solve for x
x = 1,112,623,333,134,031.12/38,553,650.60 - Step 6: Final answer
x = 28,859,091.58
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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.