Finding the Fourth Proportional to 13,133,678.46, 19,712,627.86 and 6,661,296.30
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Solution
The fourth proportional to 13,133,678.46, 19,712,627.86 and 6,661,296.30 is: 9,998,086.63
Step by Step Solution
- Step 1: Write the proportion equation
13,133,678.46 : 19,712,627.86 = 6,661,296.30 : x - Step 2: Convert to fraction form
13,133,678.46/19,712,627.86 = 6,661,296.30/x - Step 3: Cross multiply
13,133,678.46x = 19,712,627.86 × 6,661,296.30 - Step 4: Simplify right side
13,133,678.46x = 131,311,655,027,094.91 - Step 5: Solve for x
x = 131,311,655,027,094.91/13,133,678.46 - Step 6: Final answer
x = 9,998,086.63
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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.