Finding the Fourth Proportional to 13,139,682.08, 18,130,127.96 and 7,337,571.08
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Solution
The fourth proportional to 13,139,682.08, 18,130,127.96 and 7,337,571.08 is: 10,124,377.58
Step by Step Solution
- Step 1: Write the proportion equation
13,139,682.08 : 18,130,127.96 = 7,337,571.08 : x - Step 2: Convert to fraction form
13,139,682.08/18,130,127.96 = 7,337,571.08/x - Step 3: Cross multiply
13,139,682.08x = 18,130,127.96 × 7,337,571.08 - Step 4: Simplify right side
13,139,682.08x = 133,031,102,595,995.41 - Step 5: Solve for x
x = 133,031,102,595,995.41/13,139,682.08 - Step 6: Final answer
x = 10,124,377.58
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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.