Finding the Fourth Proportional to 4,218,851.79, 5,818,188.69 and 2,767,995.99
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Solution
The fourth proportional to 4,218,851.79, 5,818,188.69 and 2,767,995.99 is: 3,817,323.71
Step by Step Solution
- Step 1: Write the proportion equation
4,218,851.79 : 5,818,188.69 = 2,767,995.99 : x - Step 2: Convert to fraction form
4,218,851.79/5,818,188.69 = 2,767,995.99/x - Step 3: Cross multiply
4,218,851.79x = 5,818,188.69 × 2,767,995.99 - Step 4: Simplify right side
4,218,851.79x = 16,104,722,962,983.36 - Step 5: Solve for x
x = 16,104,722,962,983.36/4,218,851.79 - Step 6: Final answer
x = 3,817,323.71
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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.