Finding the Fourth Proportional to 3,870,512.98, 5,341,444.97 and 2,128,314.96
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Solution
The fourth proportional to 3,870,512.98, 5,341,444.97 and 2,128,314.96 is: 2,937,150.01
Step by Step Solution
- Step 1: Write the proportion equation
3,870,512.98 : 5,341,444.97 = 2,128,314.96 : x - Step 2: Convert to fraction form
3,870,512.98/5,341,444.97 = 2,128,314.96/x - Step 3: Cross multiply
3,870,512.98x = 5,341,444.97 × 2,128,314.96 - Step 4: Simplify right side
3,870,512.98x = 11,368,277,227,026.18 - Step 5: Solve for x
x = 11,368,277,227,026.18/3,870,512.98 - Step 6: Final answer
x = 2,937,150.01
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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.