Finding the Fourth Proportional to 21,416,675.41, 32,112,940.87 and 7,035,881.95
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Solution
The fourth proportional to 21,416,675.41, 32,112,940.87 and 7,035,881.95 is: 10,549,856.91
Step by Step Solution
- Step 1: Write the proportion equation
21,416,675.41 : 32,112,940.87 = 7,035,881.95 : x - Step 2: Convert to fraction form
21,416,675.41/32,112,940.87 = 7,035,881.95/x - Step 3: Cross multiply
21,416,675.41x = 32,112,940.87 × 7,035,881.95 - Step 4: Simplify right side
21,416,675.41x = 225,942,861,028,650.31 - Step 5: Solve for x
x = 225,942,861,028,650.31/21,416,675.41 - Step 6: Final answer
x = 10,549,856.91
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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.