Finding the Fourth Proportional to 9,178,220.40, 13,772,579.40 and 6,340,369.20
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Solution
The fourth proportional to 9,178,220.40, 13,772,579.40 and 6,340,369.20 is: 9,514,179.70
Step by Step Solution
- Step 1: Write the proportion equation
9,178,220.40 : 13,772,579.40 = 6,340,369.20 : x - Step 2: Convert to fraction form
9,178,220.40/13,772,579.40 = 6,340,369.20/x - Step 3: Cross multiply
9,178,220.40x = 13,772,579.40 × 6,340,369.20 - Step 4: Simplify right side
9,178,220.40x = 87,323,238,232,314.48 - Step 5: Solve for x
x = 87,323,238,232,314.48/9,178,220.40 - Step 6: Final answer
x = 9,514,179.70
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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.