Finding the Fourth Proportional to 138,707,870.99, 207,772,274.81 and 83,199,668.24
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Solution
The fourth proportional to 138,707,870.99, 207,772,274.81 and 83,199,668.24 is: 124,625,835.65
Step by Step Solution
- Step 1: Write the proportion equation
138,707,870.99 : 207,772,274.81 = 83,199,668.24 : x - Step 2: Convert to fraction form
138,707,870.99/207,772,274.81 = 83,199,668.24/x - Step 3: Cross multiply
138,707,870.99x = 207,772,274.81 × 83,199,668.24 - Step 4: Simplify right side
138,707,870.99x = 17,286,584,332,207,250 - Step 5: Solve for x
x = 17,286,584,332,207,250/138,707,870.99 - Step 6: Final answer
x = 124,625,835.65
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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.