Finding the Fourth Proportional to 13,943,891.24, 19,243,037.20 and 7,749,199.05
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Solution
The fourth proportional to 13,943,891.24, 19,243,037.20 and 7,749,199.05 is: 10,694,154.37
Step by Step Solution
- Step 1: Write the proportion equation
13,943,891.24 : 19,243,037.20 = 7,749,199.05 : x - Step 2: Convert to fraction form
13,943,891.24/19,243,037.20 = 7,749,199.05/x - Step 3: Cross multiply
13,943,891.24x = 19,243,037.20 × 7,749,199.05 - Step 4: Simplify right side
13,943,891.24x = 149,118,125,497,820.28 - Step 5: Solve for x
x = 149,118,125,497,820.28/13,943,891.24 - Step 6: Final answer
x = 10,694,154.37
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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.