Finding the Fourth Proportional to 14,128,201.80, 21,192,302.70 and 13,183,417.80
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Solution
The fourth proportional to 14,128,201.80, 21,192,302.70 and 13,183,417.80 is: 19,775,126.70
Step by Step Solution
- Step 1: Write the proportion equation
14,128,201.80 : 21,192,302.70 = 13,183,417.80 : x - Step 2: Convert to fraction form
14,128,201.80/21,192,302.70 = 13,183,417.80/x - Step 3: Cross multiply
14,128,201.80x = 21,192,302.70 × 13,183,417.80 - Step 4: Simplify right side
14,128,201.80x = 279,386,980,638,168.06 - Step 5: Solve for x
x = 279,386,980,638,168.06/14,128,201.80 - Step 6: Final answer
x = 19,775,126.70
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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.