Finding the Fourth Proportional to 86,263,711.74, 129,352,298.49 and 28,735,757.82
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Solution
The fourth proportional to 86,263,711.74, 129,352,298.49 and 28,735,757.82 is: 43,089,223.13
Step by Step Solution
- Step 1: Write the proportion equation
86,263,711.74 : 129,352,298.49 = 28,735,757.82 : x - Step 2: Convert to fraction form
86,263,711.74/129,352,298.49 = 28,735,757.82/x - Step 3: Cross multiply
86,263,711.74x = 129,352,298.49 × 28,735,757.82 - Step 4: Simplify right side
86,263,711.74x = 3,717,036,322,868,991.50 - Step 5: Solve for x
x = 3,717,036,322,868,991.50/86,263,711.74 - Step 6: Final answer
x = 43,089,223.13
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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.