Finding the Fourth Proportional to 38,672,849.76, 53,368,890.12 and 21,031,920.06
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Solution
The fourth proportional to 38,672,849.76, 53,368,890.12 and 21,031,920.06 is: 29,024,244.08
Step by Step Solution
- Step 1: Write the proportion equation
38,672,849.76 : 53,368,890.12 = 21,031,920.06 : x - Step 2: Convert to fraction form
38,672,849.76/53,368,890.12 = 21,031,920.06/x - Step 3: Cross multiply
38,672,849.76x = 53,368,890.12 × 21,031,920.06 - Step 4: Simplify right side
38,672,849.76x = 1,122,450,230,694,763.62 - Step 5: Solve for x
x = 1,122,450,230,694,763.62/38,672,849.76 - Step 6: Final answer
x = 29,024,244.08
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1.5x scale
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.