Finding the Fourth Proportional to 14,258,409.80, 21,387,614.70 and 7,881,117.80
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Solution
The fourth proportional to 14,258,409.80, 21,387,614.70 and 7,881,117.80 is: 11,821,676.70
Step by Step Solution
- Step 1: Write the proportion equation
14,258,409.80 : 21,387,614.70 = 7,881,117.80 : x - Step 2: Convert to fraction form
14,258,409.80/21,387,614.70 = 7,881,117.80/x - Step 3: Cross multiply
14,258,409.80x = 21,387,614.70 × 7,881,117.80 - Step 4: Simplify right side
14,258,409.80x = 168,558,310,911,711.66 - Step 5: Solve for x
x = 168,558,310,911,711.66/14,258,409.80 - Step 6: Final answer
x = 11,821,676.70
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1.5x scale
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.