Finding the Fourth Proportional to 15,643,808.08, 21,588,386.70 and 8,768,290.48
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Solution
The fourth proportional to 15,643,808.08, 21,588,386.70 and 8,768,290.48 is: 12,100,202.50
Step by Step Solution
- Step 1: Write the proportion equation
15,643,808.08 : 21,588,386.70 = 8,768,290.48 : x - Step 2: Convert to fraction form
15,643,808.08/21,588,386.70 = 8,768,290.48/x - Step 3: Cross multiply
15,643,808.08x = 21,588,386.70 × 8,768,290.48 - Step 4: Simplify right side
15,643,808.08x = 189,293,245,580,168.62 - Step 5: Solve for x
x = 189,293,245,580,168.62/15,643,808.08 - Step 6: Final answer
x = 12,100,202.50
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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.