Finding the Fourth Proportional to 19,422,684.23, 26,803,305.68 and 10,720,859.09
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Solution
The fourth proportional to 19,422,684.23, 26,803,305.68 and 10,720,859.09 is: 14,794,786.33
Step by Step Solution
- Step 1: Write the proportion equation
19,422,684.23 : 26,803,305.68 = 10,720,859.09 : x - Step 2: Convert to fraction form
19,422,684.23/26,803,305.68 = 10,720,859.09/x - Step 3: Cross multiply
19,422,684.23x = 26,803,305.68 × 10,720,859.09 - Step 4: Simplify right side
19,422,684.23x = 287,354,463,153,855.81 - Step 5: Solve for x
x = 287,354,463,153,855.81/19,422,684.23 - Step 6: Final answer
x = 14,794,786.33
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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.