Finding the Fourth Proportional to 12,425,029.40, 18,631,307.36 and 7,239,317.48
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Solution
The fourth proportional to 12,425,029.40, 18,631,307.36 and 7,239,317.48 is: 10,855,342.45
Step by Step Solution
- Step 1: Write the proportion equation
12,425,029.40 : 18,631,307.36 = 7,239,317.48 : x - Step 2: Convert to fraction form
12,425,029.40/18,631,307.36 = 7,239,317.48/x - Step 3: Cross multiply
12,425,029.40x = 18,631,307.36 × 7,239,317.48 - Step 4: Simplify right side
12,425,029.40x = 134,877,949,046,500.66 - Step 5: Solve for x
x = 134,877,949,046,500.66/12,425,029.40 - Step 6: Final answer
x = 10,855,342.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.