Finding the Fourth Proportional to 3,818,878.58, 5,270,187.75 and 2,100,129.86
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Solution
The fourth proportional to 3,818,878.58, 5,270,187.75 and 2,100,129.86 is: 2,898,253.62
Step by Step Solution
- Step 1: Write the proportion equation
3,818,878.58 : 5,270,187.75 = 2,100,129.86 : x - Step 2: Convert to fraction form
3,818,878.58/5,270,187.75 = 2,100,129.86/x - Step 3: Cross multiply
3,818,878.58x = 5,270,187.75 × 2,100,129.86 - Step 4: Simplify right side
3,818,878.58x = 11,068,078,666,881.20 - Step 5: Solve for x
x = 11,068,078,666,881.20/3,818,878.58 - Step 6: Final answer
x = 2,898,253.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.