Finding the Fourth Proportional to 5,210,381.44, 7,190,368.59 and 2,887,312.76
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Solution
The fourth proportional to 5,210,381.44, 7,190,368.59 and 2,887,312.76 is: 3,984,515.00
Step by Step Solution
- Step 1: Write the proportion equation
5,210,381.44 : 7,190,368.59 = 2,887,312.76 : x - Step 2: Convert to fraction form
5,210,381.44/7,190,368.59 = 2,887,312.76/x - Step 3: Cross multiply
5,210,381.44x = 7,190,368.59 × 2,887,312.76 - Step 4: Simplify right side
5,210,381.44x = 20,760,842,979,010.21 - Step 5: Solve for x
x = 20,760,842,979,010.21/5,210,381.44 - Step 6: Final answer
x = 3,984,515.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.