Finding the Fourth Proportional to 13,100,955.62, 18,079,083.58 and 7,140,416.06
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Solution
The fourth proportional to 13,100,955.62, 18,079,083.58 and 7,140,416.06 is: 9,853,645.99
Step by Step Solution
- Step 1: Write the proportion equation
13,100,955.62 : 18,079,083.58 = 7,140,416.06 : x - Step 2: Convert to fraction form
13,100,955.62/18,079,083.58 = 7,140,416.06/x - Step 3: Cross multiply
13,100,955.62x = 18,079,083.58 × 7,140,416.06 - Step 4: Simplify right side
13,100,955.62x = 129,092,178,744,714.28 - Step 5: Solve for x
x = 129,092,178,744,714.28/13,100,955.62 - Step 6: Final answer
x = 9,853,645.99
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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.