Finding the Fourth Proportional to 3,888,056.88, 5,365,647.32 and 2,122,051.68
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Solution
The fourth proportional to 3,888,056.88, 5,365,647.32 and 2,122,051.68 is: 2,928,501.63
Step by Step Solution
- Step 1: Write the proportion equation
3,888,056.88 : 5,365,647.32 = 2,122,051.68 : x - Step 2: Convert to fraction form
3,888,056.88/5,365,647.32 = 2,122,051.68/x - Step 3: Cross multiply
3,888,056.88x = 5,365,647.32 × 2,122,051.68 - Step 4: Simplify right side
3,888,056.88x = 11,386,180,909,693.50 - Step 5: Solve for x
x = 11,386,180,909,693.50/3,888,056.88 - Step 6: Final answer
x = 2,928,501.63
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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.