Finding the Fourth Proportional to 13,708,536.31, 18,926,381.95 and 8,822,249.99
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Solution
The fourth proportional to 13,708,536.31, 18,926,381.95 and 8,822,249.99 is: 12,180,240.78
Step by Step Solution
- Step 1: Write the proportion equation
13,708,536.31 : 18,926,381.95 = 8,822,249.99 : x - Step 2: Convert to fraction form
13,708,536.31/18,926,381.95 = 8,822,249.99/x - Step 3: Cross multiply
13,708,536.31x = 18,926,381.95 × 8,822,249.99 - Step 4: Simplify right side
13,708,536.31x = 166,973,272,989,035.78 - Step 5: Solve for x
x = 166,973,272,989,035.78/13,708,536.31 - Step 6: Final answer
x = 12,180,240.78
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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.