Finding the Fourth Proportional to 11,684,993.78, 16,124,993.79 and 6,528,394.10
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Solution
The fourth proportional to 11,684,993.78, 16,124,993.79 and 6,528,394.10 is: 9,009,017.57
Step by Step Solution
- Step 1: Write the proportion equation
11,684,993.78 : 16,124,993.79 = 6,528,394.10 : x - Step 2: Convert to fraction form
11,684,993.78/16,124,993.79 = 6,528,394.10/x - Step 3: Cross multiply
11,684,993.78x = 16,124,993.79 × 6,528,394.10 - Step 4: Simplify right side
11,684,993.78x = 105,270,314,321,172.62 - Step 5: Solve for x
x = 105,270,314,321,172.62/11,684,993.78 - Step 6: Final answer
x = 9,009,017.57
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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.