Finding the Fourth Proportional to 47,786,134.48, 71,678,997.14 and 13,242,437.59
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Solution
The fourth proportional to 47,786,134.48, 71,678,997.14 and 13,242,437.59 is: 19,863,599.68
Step by Step Solution
- Step 1: Write the proportion equation
47,786,134.48 : 71,678,997.14 = 13,242,437.59 : x - Step 2: Convert to fraction form
47,786,134.48/71,678,997.14 = 13,242,437.59/x - Step 3: Cross multiply
47,786,134.48x = 71,678,997.14 × 13,242,437.59 - Step 4: Simplify right side
47,786,134.48x = 949,204,645,781,843.62 - Step 5: Solve for x
x = 949,204,645,781,843.62/47,786,134.48 - Step 6: Final answer
x = 19,863,599.68
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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.