Finding the Fourth Proportional to 4,248,079.81, 6,374,112.64 and 2,118,330
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Solution
The fourth proportional to 4,248,079.81, 6,374,112.64 and 2,118,330 is: 3,178,488.78
Step by Step Solution
- Step 1: Write the proportion equation
4,248,079.81 : 6,374,112.64 = 2,118,330 : x - Step 2: Convert to fraction form
4,248,079.81/6,374,112.64 = 2,118,330/x - Step 3: Cross multiply
4,248,079.81x = 6,374,112.64 × 2,118,330 - Step 4: Simplify right side
4,248,079.81x = 13,502,474,023,395.38 - Step 5: Solve for x
x = 13,502,474,023,395.38/4,248,079.81 - Step 6: Final answer
x = 3,178,488.78
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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.