Finding the Fourth Proportional to 13,319,267.13, 18,380,588.58 and 7,207,695.63
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Solution
The fourth proportional to 13,319,267.13, 18,380,588.58 and 7,207,695.63 is: 9,946,619.94
Step by Step Solution
- Step 1: Write the proportion equation
13,319,267.13 : 18,380,588.58 = 7,207,695.63 : x - Step 2: Convert to fraction form
13,319,267.13/18,380,588.58 = 7,207,695.63/x - Step 3: Cross multiply
13,319,267.13x = 18,380,588.58 × 7,207,695.63 - Step 4: Simplify right side
13,319,267.13x = 132,481,687,984,893.89 - Step 5: Solve for x
x = 132,481,687,984,893.89/13,319,267.13 - Step 6: Final answer
x = 9,946,619.94
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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.