Finding the Fourth Proportional to 11,363,875.05, 15,678,257.54 and 6,467,870.91
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Solution
The fourth proportional to 11,363,875.05, 15,678,257.54 and 6,467,870.91 is: 8,923,447.80
Step by Step Solution
- Step 1: Write the proportion equation
11,363,875.05 : 15,678,257.54 = 6,467,870.91 : x - Step 2: Convert to fraction form
11,363,875.05/15,678,257.54 = 6,467,870.91/x - Step 3: Cross multiply
11,363,875.05x = 15,678,257.54 × 6,467,870.91 - Step 4: Simplify right side
11,363,875.05x = 101,404,945,830,114.81 - Step 5: Solve for x
x = 101,404,945,830,114.81/11,363,875.05 - Step 6: Final answer
x = 8,923,447.80
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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.