Finding the Fourth Proportional to 5,424,772.80, 8,134,202.70 and 1,637,763.60
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Solution
The fourth proportional to 5,424,772.80, 8,134,202.70 and 1,637,763.60 is: 2,455,752.82
Step by Step Solution
- Step 1: Write the proportion equation
5,424,772.80 : 8,134,202.70 = 1,637,763.60 : x - Step 2: Convert to fraction form
5,424,772.80/8,134,202.70 = 1,637,763.60/x - Step 3: Cross multiply
5,424,772.80x = 8,134,202.70 × 1,637,763.60 - Step 4: Simplify right side
5,424,772.80x = 13,321,901,097,081.72 - Step 5: Solve for x
x = 13,321,901,097,081.72/5,424,772.80 - Step 6: Final answer
x = 2,455,752.82
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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.