Finding the Fourth Proportional to 86,242,415.20, 129,399,052.20 and 31,681,139.20
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Solution
The fourth proportional to 86,242,415.20, 129,399,052.20 and 31,681,139.20 is: 47,534,723.79
Step by Step Solution
- Step 1: Write the proportion equation
86,242,415.20 : 129,399,052.20 = 31,681,139.20 : x - Step 2: Convert to fraction form
86,242,415.20/129,399,052.20 = 31,681,139.20/x - Step 3: Cross multiply
86,242,415.20x = 129,399,052.20 × 31,681,139.20 - Step 4: Simplify right side
86,242,415.20x = 4,099,509,385,096,266 - Step 5: Solve for x
x = 4,099,509,385,096,266/86,242,415.20 - Step 6: Final answer
x = 47,534,723.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.