Finding the Fourth Proportional to 27,221,445.36, 40,832,130.69 and 12,640,391.48
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Solution
The fourth proportional to 27,221,445.36, 40,832,130.69 and 12,640,391.48 is: 18,960,569.87
Step by Step Solution
- Step 1: Write the proportion equation
27,221,445.36 : 40,832,130.69 = 12,640,391.48 : x - Step 2: Convert to fraction form
27,221,445.36/40,832,130.69 = 12,640,391.48/x - Step 3: Cross multiply
27,221,445.36x = 40,832,130.69 × 12,640,391.48 - Step 4: Simplify right side
27,221,445.36x = 516,134,116,679,961.81 - Step 5: Solve for x
x = 516,134,116,679,961.81/27,221,445.36 - Step 6: Final answer
x = 18,960,569.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.