Finding the Fourth Proportional to 7,882,985.90, 10,878,536.49 and 4,261,313.90
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Solution
The fourth proportional to 7,882,985.90, 10,878,536.49 and 4,261,313.90 is: 5,880,621.80
Step by Step Solution
- Step 1: Write the proportion equation
7,882,985.90 : 10,878,536.49 = 4,261,313.90 : x - Step 2: Convert to fraction form
7,882,985.90/10,878,536.49 = 4,261,313.90/x - Step 3: Cross multiply
7,882,985.90x = 10,878,536.49 × 4,261,313.90 - Step 4: Simplify right side
7,882,985.90x = 46,356,858,756,494.22 - Step 5: Solve for x
x = 46,356,858,756,494.22/7,882,985.90 - Step 6: Final answer
x = 5,880,621.80
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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.