Finding the Fourth Proportional to 21,653,874.99, 29,881,203.35 and 12,361,076.28
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Solution
The fourth proportional to 21,653,874.99, 29,881,203.35 and 12,361,076.28 is: 17,057,632.14
Step by Step Solution
- Step 1: Write the proportion equation
21,653,874.99 : 29,881,203.35 = 12,361,076.28 : x - Step 2: Convert to fraction form
21,653,874.99/29,881,203.35 = 12,361,076.28/x - Step 3: Cross multiply
21,653,874.99x = 29,881,203.35 × 12,361,076.28 - Step 4: Simplify right side
21,653,874.99x = 369,363,833,885,736.12 - Step 5: Solve for x
x = 369,363,833,885,736.12/21,653,874.99 - Step 6: Final answer
x = 17,057,632.14
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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.