Finding the Fourth Proportional to 14,638,663.60, 20,201,108.94 and 8,112,279.76
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Solution
The fourth proportional to 14,638,663.60, 20,201,108.94 and 8,112,279.76 is: 11,194,809.28
Step by Step Solution
- Step 1: Write the proportion equation
14,638,663.60 : 20,201,108.94 = 8,112,279.76 : x - Step 2: Convert to fraction form
14,638,663.60/20,201,108.94 = 8,112,279.76/x - Step 3: Cross multiply
14,638,663.60x = 20,201,108.94 × 8,112,279.76 - Step 4: Simplify right side
14,638,663.60x = 163,877,047,183,517.06 - Step 5: Solve for x
x = 163,877,047,183,517.06/14,638,663.60 - Step 6: Final answer
x = 11,194,809.28
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1.5x scale
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.