Finding the Fourth Proportional to 3,009,521.16, 4,153,138.92 and 1,720,390.32
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Solution
The fourth proportional to 3,009,521.16, 4,153,138.92 and 1,720,390.32 is: 2,374,138.48
Step by Step Solution
- Step 1: Write the proportion equation
3,009,521.16 : 4,153,138.92 = 1,720,390.32 : x - Step 2: Convert to fraction form
3,009,521.16/4,153,138.92 = 1,720,390.32/x - Step 3: Cross multiply
3,009,521.16x = 4,153,138.92 × 1,720,390.32 - Step 4: Simplify right side
3,009,521.16x = 7,145,019,995,583.26 - Step 5: Solve for x
x = 7,145,019,995,583.26/3,009,521.16 - Step 6: Final answer
x = 2,374,138.48
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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.