Finding the Fourth Proportional to 5,638,612.51, 7,781,292.84 and 3,060,293.32
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Solution
The fourth proportional to 5,638,612.51, 7,781,292.84 and 3,060,293.32 is: 4,223,208.89
Step by Step Solution
- Step 1: Write the proportion equation
5,638,612.51 : 7,781,292.84 = 3,060,293.32 : x - Step 2: Convert to fraction form
5,638,612.51/7,781,292.84 = 3,060,293.32/x - Step 3: Cross multiply
5,638,612.51x = 7,781,292.84 × 3,060,293.32 - Step 4: Simplify right side
5,638,612.51x = 23,813,038,499,215.83 - Step 5: Solve for x
x = 23,813,038,499,215.83/5,638,612.51 - Step 6: Final answer
x = 4,223,208.89
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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.