Finding the Fourth Proportional to 14,959,709.70, 20,643,509.44 and 8,679,750.54
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Solution
The fourth proportional to 14,959,709.70, 20,643,509.44 and 8,679,750.54 is: 11,977,539.39
Step by Step Solution
- Step 1: Write the proportion equation
14,959,709.70 : 20,643,509.44 = 8,679,750.54 : x - Step 2: Convert to fraction form
14,959,709.70/20,643,509.44 = 8,679,750.54/x - Step 3: Cross multiply
14,959,709.70x = 20,643,509.44 × 8,679,750.54 - Step 4: Simplify right side
14,959,709.70x = 179,180,512,209,335.09 - Step 5: Solve for x
x = 179,180,512,209,335.09/14,959,709.70 - Step 6: Final answer
x = 11,977,539.39
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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.