Finding the Fourth Proportional to 21,823,769.28, 32,735,648.16 and 7,446,835.68
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Solution
The fourth proportional to 21,823,769.28, 32,735,648.16 and 7,446,835.68 is: 11,170,251.55
Step by Step Solution
- Step 1: Write the proportion equation
21,823,769.28 : 32,735,648.16 = 7,446,835.68 : x - Step 2: Convert to fraction form
21,823,769.28/32,735,648.16 = 7,446,835.68/x - Step 3: Cross multiply
21,823,769.28x = 32,735,648.16 × 7,446,835.68 - Step 4: Simplify right side
21,823,769.28x = 243,776,992,725,814.34 - Step 5: Solve for x
x = 243,776,992,725,814.34/21,823,769.28 - Step 6: Final answer
x = 11,170,251.55
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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.