Finding the Fourth Proportional to 39,861,516.71, 55,008,893.81 and 21,526,802.21
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Solution
The fourth proportional to 39,861,516.71, 55,008,893.81 and 21,526,802.21 is: 29,706,987.45
Step by Step Solution
- Step 1: Write the proportion equation
39,861,516.71 : 55,008,893.81 = 21,526,802.21 : x - Step 2: Convert to fraction form
39,861,516.71/55,008,893.81 = 21,526,802.21/x - Step 3: Cross multiply
39,861,516.71x = 55,008,893.81 × 21,526,802.21 - Step 4: Simplify right side
39,861,516.71x = 1,184,165,576,838,763.50 - Step 5: Solve for x
x = 1,184,165,576,838,763.50/39,861,516.71 - Step 6: Final answer
x = 29,706,987.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.