Finding the Fourth Proportional to 19,952,215.21, 27,531,717.85 and 11,249,868.84
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Solution
The fourth proportional to 19,952,215.21, 27,531,717.85 and 11,249,868.84 is: 15,523,500.10
Step by Step Solution
- Step 1: Write the proportion equation
19,952,215.21 : 27,531,717.85 = 11,249,868.84 : x - Step 2: Convert to fraction form
19,952,215.21/27,531,717.85 = 11,249,868.84/x - Step 3: Cross multiply
19,952,215.21x = 27,531,717.85 × 11,249,868.84 - Step 4: Simplify right side
19,952,215.21x = 309,728,214,752,386.81 - Step 5: Solve for x
x = 309,728,214,752,386.81/19,952,215.21 - Step 6: Final answer
x = 15,523,500.10
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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.