Finding the Fourth Proportional to 56,181,951.76, 84,263,738.11 and 19,781,786.20
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Solution
The fourth proportional to 56,181,951.76, 84,263,738.11 and 19,781,786.20 is: 29,669,443.65
Step by Step Solution
- Step 1: Write the proportion equation
56,181,951.76 : 84,263,738.11 = 19,781,786.20 : x - Step 2: Convert to fraction form
56,181,951.76/84,263,738.11 = 19,781,786.20/x - Step 3: Cross multiply
56,181,951.76x = 84,263,738.11 × 19,781,786.20 - Step 4: Simplify right side
56,181,951.76x = 1,666,887,251,704,812 - Step 5: Solve for x
x = 1,666,887,251,704,812/56,181,951.76 - Step 6: Final answer
x = 29,669,443.65
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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.