Finding the Fourth Proportional to 13,428,073.47, 20,146,040.66 and 4,329,988.08
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Solution
The fourth proportional to 13,428,073.47, 20,146,040.66 and 4,329,988.08 is: 6,496,249.52
Step by Step Solution
- Step 1: Write the proportion equation
13,428,073.47 : 20,146,040.66 = 4,329,988.08 : x - Step 2: Convert to fraction form
13,428,073.47/20,146,040.66 = 4,329,988.08/x - Step 3: Cross multiply
13,428,073.47x = 20,146,040.66 × 4,329,988.08 - Step 4: Simplify right side
13,428,073.47x = 87,232,115,895,345.41 - Step 5: Solve for x
x = 87,232,115,895,345.41/13,428,073.47 - Step 6: Final answer
x = 6,496,249.52
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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.