Finding the Fourth Proportional to 20,012,448.08, 27,626,699.40 and 13,408,407.92
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Solution
The fourth proportional to 20,012,448.08, 27,626,699.40 and 13,408,407.92 is: 18,509,982.07
Step by Step Solution
- Step 1: Write the proportion equation
20,012,448.08 : 27,626,699.40 = 13,408,407.92 : x - Step 2: Convert to fraction form
20,012,448.08/27,626,699.40 = 13,408,407.92/x - Step 3: Cross multiply
20,012,448.08x = 27,626,699.40 × 13,408,407.92 - Step 4: Simplify right side
20,012,448.08x = 370,430,055,038,419.25 - Step 5: Solve for x
x = 370,430,055,038,419.25/20,012,448.08 - Step 6: Final answer
x = 18,509,982.07
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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.