Finding the Fourth Proportional to 18,120,708.63, 25,006,581.99 and 9,971,946.63
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Solution
The fourth proportional to 18,120,708.63, 25,006,581.99 and 9,971,946.63 is: 13,761,288.59
Step by Step Solution
- Step 1: Write the proportion equation
18,120,708.63 : 25,006,581.99 = 9,971,946.63 : x - Step 2: Convert to fraction form
18,120,708.63/25,006,581.99 = 9,971,946.63/x - Step 3: Cross multiply
18,120,708.63x = 25,006,581.99 × 9,971,946.63 - Step 4: Simplify right side
18,120,708.63x = 249,364,301,002,999.19 - Step 5: Solve for x
x = 249,364,301,002,999.19/18,120,708.63 - Step 6: Final answer
x = 13,761,288.59
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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.