Finding the Fourth Proportional to 20,658,650.01, 28,509,378.65 and 11,366,246.82
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Solution
The fourth proportional to 20,658,650.01, 28,509,378.65 and 11,366,246.82 is: 15,685,663.59
Step by Step Solution
- Step 1: Write the proportion equation
20,658,650.01 : 28,509,378.65 = 11,366,246.82 : x - Step 2: Convert to fraction form
20,658,650.01/28,509,378.65 = 11,366,246.82/x - Step 3: Cross multiply
20,658,650.01x = 28,509,378.65 × 11,366,246.82 - Step 4: Simplify right side
20,658,650.01x = 324,044,634,363,907.19 - Step 5: Solve for x
x = 324,044,634,363,907.19/20,658,650.01 - Step 6: Final answer
x = 15,685,663.59
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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.