Finding the Fourth Proportional to 13,979,467.76, 19,275,158.39 and 9,571,330.99
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Solution
The fourth proportional to 13,979,467.76, 19,275,158.39 and 9,571,330.99 is: 13,197,134.83
Step by Step Solution
- Step 1: Write the proportion equation
13,979,467.76 : 19,275,158.39 = 9,571,330.99 : x - Step 2: Convert to fraction form
13,979,467.76/19,275,158.39 = 9,571,330.99/x - Step 3: Cross multiply
13,979,467.76x = 19,275,158.39 × 9,571,330.99 - Step 4: Simplify right side
13,979,467.76x = 184,488,920,835,365.53 - Step 5: Solve for x
x = 184,488,920,835,365.53/13,979,467.76 - Step 6: Final answer
x = 13,197,134.83
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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.