Finding the Fourth Proportional to 18,751,515.30, 28,127,272.95 and 5,973,311.70
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Solution
The fourth proportional to 18,751,515.30, 28,127,272.95 and 5,973,311.70 is: 8,959,967.55
Step by Step Solution
- Step 1: Write the proportion equation
18,751,515.30 : 28,127,272.95 = 5,973,311.70 : x - Step 2: Convert to fraction form
18,751,515.30/28,127,272.95 = 5,973,311.70/x - Step 3: Cross multiply
18,751,515.30x = 28,127,272.95 × 5,973,311.70 - Step 4: Simplify right side
18,751,515.30x = 168,012,968,601,328.53 - Step 5: Solve for x
x = 168,012,968,601,328.53/18,751,515.30 - Step 6: Final answer
x = 8,959,967.55
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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.