Finding the Fourth Proportional to 7,818,926.36, 10,783,720.80 and 5,503,483.84
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Solution
The fourth proportional to 7,818,926.36, 10,783,720.80 and 5,503,483.84 is: 7,590,304.66
Step by Step Solution
- Step 1: Write the proportion equation
7,818,926.36 : 10,783,720.80 = 5,503,483.84 : x - Step 2: Convert to fraction form
7,818,926.36/10,783,720.80 = 5,503,483.84/x - Step 3: Cross multiply
7,818,926.36x = 10,783,720.80 × 5,503,483.84 - Step 4: Simplify right side
7,818,926.36x = 59,348,033,157,871.88 - Step 5: Solve for x
x = 59,348,033,157,871.88/7,818,926.36 - Step 6: Final answer
x = 7,590,304.66
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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.