Finding the Fourth Proportional to 18,078,339.96, 27,117,730.80 and 5,299,103.16
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Solution
The fourth proportional to 18,078,339.96, 27,117,730.80 and 5,299,103.16 is: 7,948,719.48
Step by Step Solution
- Step 1: Write the proportion equation
18,078,339.96 : 27,117,730.80 = 5,299,103.16 : x - Step 2: Convert to fraction form
18,078,339.96/27,117,730.80 = 5,299,103.16/x - Step 3: Cross multiply
18,078,339.96x = 27,117,730.80 × 5,299,103.16 - Step 4: Simplify right side
18,078,339.96x = 143,699,652,974,309.34 - Step 5: Solve for x
x = 143,699,652,974,309.34/18,078,339.96 - Step 6: Final answer
x = 7,948,719.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.