Finding the Fourth Proportional to 6,943,408.81, 9,579,831.47 and 4,492,138.21
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Solution
The fourth proportional to 6,943,408.81, 9,579,831.47 and 4,492,138.21 is: 6,197,809.77
Step by Step Solution
- Step 1: Write the proportion equation
6,943,408.81 : 9,579,831.47 = 4,492,138.21 : x - Step 2: Convert to fraction form
6,943,408.81/9,579,831.47 = 4,492,138.21/x - Step 3: Cross multiply
6,943,408.81x = 9,579,831.47 × 4,492,138.21 - Step 4: Simplify right side
6,943,408.81x = 43,033,926,969,286.77 - Step 5: Solve for x
x = 43,033,926,969,286.77/6,943,408.81 - Step 6: Final answer
x = 6,197,809.77
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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.