Finding the Fourth Proportional to 20,409,603.28, 28,165,253.84 and 11,242,246.04
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Solution
The fourth proportional to 20,409,603.28, 28,165,253.84 and 11,242,246.04 is: 15,514,300.26
Step by Step Solution
- Step 1: Write the proportion equation
20,409,603.28 : 28,165,253.84 = 11,242,246.04 : x - Step 2: Convert to fraction form
20,409,603.28/28,165,253.84 = 11,242,246.04/x - Step 3: Cross multiply
20,409,603.28x = 28,165,253.84 × 11,242,246.04 - Step 4: Simplify right side
20,409,603.28x = 316,640,713,448,334.75 - Step 5: Solve for x
x = 316,640,713,448,334.75/20,409,603.28 - Step 6: Final answer
x = 15,514,300.26
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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.