Finding the Fourth Proportional to 13,507,101.02, 18,639,777.87 and 7,312,146
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Solution
The fourth proportional to 13,507,101.02, 18,639,777.87 and 7,312,146 is: 10,090,749.82
Step by Step Solution
- Step 1: Write the proportion equation
13,507,101.02 : 18,639,777.87 = 7,312,146 : x - Step 2: Convert to fraction form
13,507,101.02/18,639,777.87 = 7,312,146/x - Step 3: Cross multiply
13,507,101.02x = 18,639,777.87 × 7,312,146 - Step 4: Simplify right side
13,507,101.02x = 136,296,777,193,009.03 - Step 5: Solve for x
x = 136,296,777,193,009.03/13,507,101.02 - Step 6: Final answer
x = 10,090,749.82
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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.