Finding the Fourth Proportional to 7,920,154.38, 11,878,328.88 and 3,656,226.09
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Solution
The fourth proportional to 7,920,154.38, 11,878,328.88 and 3,656,226.09 is: 5,483,460.79
Step by Step Solution
- Step 1: Write the proportion equation
7,920,154.38 : 11,878,328.88 = 3,656,226.09 : x - Step 2: Convert to fraction form
7,920,154.38/11,878,328.88 = 3,656,226.09/x - Step 3: Cross multiply
7,920,154.38x = 11,878,328.88 × 3,656,226.09 - Step 4: Simplify right side
7,920,154.38x = 43,429,855,956,656.48 - Step 5: Solve for x
x = 43,429,855,956,656.48/7,920,154.38 - Step 6: Final answer
x = 5,483,460.79
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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.