Finding the Fourth Proportional to 3,936,437.80, 5,904,656.70 and 2,140,181.80
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Solution
The fourth proportional to 3,936,437.80, 5,904,656.70 and 2,140,181.80 is: 3,210,272.70
Step by Step Solution
- Step 1: Write the proportion equation
3,936,437.80 : 5,904,656.70 = 2,140,181.80 : x - Step 2: Convert to fraction form
3,936,437.80/5,904,656.70 = 2,140,181.80/x - Step 3: Cross multiply
3,936,437.80x = 5,904,656.70 × 2,140,181.80 - Step 4: Simplify right side
3,936,437.80x = 12,637,038,804,588.06 - Step 5: Solve for x
x = 12,637,038,804,588.06/3,936,437.80 - Step 6: Final answer
x = 3,210,272.70
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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.