Finding the Fourth Proportional to 21,717,426.48, 29,962,756.64 and 12,296,932.48
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Solution
The fourth proportional to 21,717,426.48, 29,962,756.64 and 12,296,932.48 is: 16,965,637.97
Step by Step Solution
- Step 1: Write the proportion equation
21,717,426.48 : 29,962,756.64 = 12,296,932.48 : x - Step 2: Convert to fraction form
21,717,426.48/29,962,756.64 = 12,296,932.48/x - Step 3: Cross multiply
21,717,426.48x = 29,962,756.64 × 12,296,932.48 - Step 4: Simplify right side
21,717,426.48x = 368,449,995,316,751.69 - Step 5: Solve for x
x = 368,449,995,316,751.69/21,717,426.48 - Step 6: Final answer
x = 16,965,637.97
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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.