Finding the Fourth Proportional to 9,710,669.63, 13,400,724.09 and 5,418,317.63
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Solution
The fourth proportional to 9,710,669.63, 13,400,724.09 and 5,418,317.63 is: 7,477,278.33
Step by Step Solution
- Step 1: Write the proportion equation
9,710,669.63 : 13,400,724.09 = 5,418,317.63 : x - Step 2: Convert to fraction form
9,710,669.63/13,400,724.09 = 5,418,317.63/x - Step 3: Cross multiply
9,710,669.63x = 13,400,724.09 × 5,418,317.63 - Step 4: Simplify right side
9,710,669.63x = 72,609,379,524,609.08 - Step 5: Solve for x
x = 72,609,379,524,609.08/9,710,669.63 - Step 6: Final answer
x = 7,477,278.33
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1.5x scale
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.