Finding the Fourth Proportional to 13,556,803.59, 18,708,365.75 and 7,445,232.09
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Solution
The fourth proportional to 13,556,803.59, 18,708,365.75 and 7,445,232.09 is: 10,274,407.54
Step by Step Solution
- Step 1: Write the proportion equation
13,556,803.59 : 18,708,365.75 = 7,445,232.09 : x - Step 2: Convert to fraction form
13,556,803.59/18,708,365.75 = 7,445,232.09/x - Step 3: Cross multiply
13,556,803.59x = 18,708,365.75 × 7,445,232.09 - Step 4: Simplify right side
13,556,803.59x = 139,288,124,996,130.77 - Step 5: Solve for x
x = 139,288,124,996,130.77/13,556,803.59 - Step 6: Final answer
x = 10,274,407.54
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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.