Finding the Fourth Proportional to 13,130,983.26, 19,699,132.20 and 4,611,984.03
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Solution
The fourth proportional to 13,130,983.26, 19,699,132.20 and 4,611,984.03 is: 6,918,909.37
Step by Step Solution
- Step 1: Write the proportion equation
13,130,983.26 : 19,699,132.20 = 4,611,984.03 : x - Step 2: Convert to fraction form
13,130,983.26/19,699,132.20 = 4,611,984.03/x - Step 3: Cross multiply
13,130,983.26x = 19,699,132.20 × 4,611,984.03 - Step 4: Simplify right side
13,130,983.26x = 90,852,083,111,258.77 - Step 5: Solve for x
x = 90,852,083,111,258.77/13,130,983.26 - Step 6: Final answer
x = 6,918,909.37
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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.