Finding the Fourth Proportional to 4,718,305.31, 7,077,386.84 and 2,122,777.09
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Solution
The fourth proportional to 4,718,305.31, 7,077,386.84 and 2,122,777.09 is: 3,184,133.64
Step by Step Solution
- Step 1: Write the proportion equation
4,718,305.31 : 7,077,386.84 = 2,122,777.09 : x - Step 2: Convert to fraction form
4,718,305.31/7,077,386.84 = 2,122,777.09/x - Step 3: Cross multiply
4,718,305.31x = 7,077,386.84 × 2,122,777.09 - Step 4: Simplify right side
4,718,305.31x = 15,023,714,639,252.34 - Step 5: Solve for x
x = 15,023,714,639,252.34/4,718,305.31 - Step 6: Final answer
x = 3,184,133.64
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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.