Finding the Fourth Proportional to 13,135,637.24, 18,126,991.14 and 7,334,510.12
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Solution
The fourth proportional to 13,135,637.24, 18,126,991.14 and 7,334,510.12 is: 10,121,518.85
Step by Step Solution
- Step 1: Write the proportion equation
13,135,637.24 : 18,126,991.14 = 7,334,510.12 : x - Step 2: Convert to fraction form
13,135,637.24/18,126,991.14 = 7,334,510.12/x - Step 3: Cross multiply
13,135,637.24x = 18,126,991.14 × 7,334,510.12 - Step 4: Simplify right side
13,135,637.24x = 132,952,599,961,480.34 - Step 5: Solve for x
x = 132,952,599,961,480.34/13,135,637.24 - Step 6: Final answer
x = 10,121,518.85
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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.